Showing posts with label strategy. Show all posts
Showing posts with label strategy. Show all posts

Tuesday, 15 February 2011

Responses to responses about David and Goliath Strategies

Tomahawk Nation responds to my earlier post on David & Goliath Strategies. See parts one and two of TN's responses. (See also my post on conservative and risky strategies and kurtosis.) Both pieces are well worth the read (I am a supporter of anything that combines football and six sigma). But a couple basic thoughts:

First, I completely agree with the idea of reducing variation, particularly negative variation. That really is the genius of Bill Walsh's passing game: what he brought to the game was a reduction of risk related to passing. Passing had been the quintessential "underdog" or David strategy; he reduced risk so much it arguably stopped being a David strategy and became a dominant one.

But I'm not sure if I agree with this:

Think of UF. To me, the Urban Meyer offense at Utah is a prime example of a David strategy. As he moved to Florida, he helped a Goliath school with Goliath resources begin to think like a David. People said that his offense would never work in the SEC, the QB would get killed, defenses were too fast, etc. But Meyer knew that his approach took advantage of a weakness in defenses, and if executed properly wouldn't be nearly as risky as people thought. Think back to the Ole Miss game from 2 years ago (the game that might have won Tim Tebow the Heisman). When the basic structures of the Meyer offense failed to work against the Ole Miss defense (Goliath being unable to hit David with his sling), and Ole Miss still allowed UF to stay in the game (Goliath managing to fight to a draw with David in a slingshot battle), UF was able to run Tim Tebow left/Tim Tebow right to win the game (Goliath is able to fall back on his superior size and strength combination to win the battle). . . .

...Gladwell highlighted the press in basketball as an example of a David strategy. Why is this a David strategy? Because Goliath doesn't focus on beating the press as much as David focuses on executing it. Because it takes Goliath out of his comfort zone. And honestly, because frequently the top point guards in the country have a certain level of confidence/cockiness in themselves that makes them want to beat the press by themselves and not rely on their teammates. The goal of the press is also to force the ball into someone's hands who is not used to handling the ball-- an inefficiency in Goliath's approach. This is how a team can use the David strategy to capitalize on an advantage. It's a risk, but if executed correctly it's not just a risk for the sake of being risky.


But is that really a David, or underdog strategy? Or is it a dominant strategy? I.e. better no matter who you are? One of the reasons I wrote my post was that I thought Gladwell confuses this point too, and I also concede at the end of the post that one conceptual difficulty is that some strategies are better for favorites (Goliaths conservative, low variance strategies), some solely for underdogs (risky David strategies), but some strategies are simply better no matter who you are (dominant), or inferior (punting on first down).

The things Tomahawk Nation is focusing on are, to me at least, dominant: better matchups, an unusual strategy the favorite is not ready for, etc. Admittedly, Gladwell confuses these two concepts -- or at least doesn't tease them out -- but I do think it's important.

To better illustrate what I mean, Advanced NFL stats showed that David strategies are often beneficial for underdogs even when they are basically inferior overall. In other words, even if a strategy would result in fewer expected points, it still would benefit the underdog because it still could get lucky. As ANFL explains:

Here’s why underdogs should play aggressive and risky gameplans. Take an example where one team is a 7-point favorite over its underdog opponent. Say the favorite would average 24 points and the underdog would average 17 points. With a SD of 10 points for each team, the underdog upsets the favorite 31.5% of the time. The favorite’s scoring distribution is blue and the underdog’s is red.



But if the underdog plays a more aggressive high-variance strategy, increasing its SD to 15 points, it would upset the favorite 35.3% of the time.



Note that I haven’t increased the underdog’s average score in any way, just its variance. The increase in its chance of winning results due to more of its probability mass moving to the right of the favorite’s mean score of 24. In fact, the higher the variance, the wider the probability mass will be spread. Consequently, more mass will be to right side of the favorite’s average score. But more mass will also be to the left, meaning there is a higher risk of an embarrassing blowout.

Even if employing a high-variance strategy is non-optimum, it can still help an underdog. In other words, even if an aggressive gameplan results in an overall reduction in average points scored, it often still results in a better chance of winning.


Yet would there be any reason for a Goliath to use this strategy? No, not at all. All it would be doing is inviting variance that would result in a few more upsets, and in fact might make the team worse (though could give the illusion of success because, again, of its high variance, resulting in a few high-scoring output games).

This is the biggest problem with the example TN uses:

Goliath University believes in the old Big Ten philosophy, 3 yards and a cloud of dust. Let's say they've even perfected their approach to the point that they can get exactly 3.3333 yards every time without ever turning the ball over. There is no risk involved and they know exactly what they are going to get with every play. Per play, they expect to get around .23 points. In true Goliath fashion, however, they run a quick, no-huddle offense in order to maximize the number of trials on the field. Over the course of the game this translates (assuming about 100 plays per game) to about 23 points and let's say a little over 30 minutes T.O.P. They'd win most of their games, but they'd lose any game where their defense gave up 24 or more due to random variation in the amount of time their opponent held the ball.

Goliath State University instead takes a more wide open approach, similar to Tulsa's offense. They throw the ball a lot more often, and go downfield more frequently as well. There is a lot more uncertainty associated with this approach, as there are many possible outcomes to their plays. However, through the strength of their preparation, they have a 50% chance of completing any given pass. Each of their 5 options (4 receivers and a QB run) has a 10% chance of success.

* If the QB runs, there is a 70% chance he will gain 4 yards, a 25% chance he will gain 14, and a 5% chance he scores
* Receiver A is running our deep fly, and there is a 50% chance he gets a 40 yard completion and a 50% chance he scores
* Receiver B is running the post, and there is a 80% chance he will get a 14 yard completion and a 20% chance he scores
* Receiver C is running the out, there is a 95% chance he gets 7 yards and a 5% chance he scores
* Receiver D is running the drag, there is a 95% chance he gets 4 yards and a 5% chance he scores

The expected point value of this play is:

.5*.1*((.7*.23+.25*1+.05*7)+(.5*3+.5*7)+(.8*1+.2*7)+(.95*.5+.05*7)+(.95*.23+.05*7)) = .468 expected points per play


Again, this is simply a better strategy, which is different than being a David strategy. Risk does not automatically equal David, and very conservative does not equal Goliath. Sometimes there is still better or worse.

To be fair, there is some indication in the TN pieces that this comes through. It repeatedly discusses the need to reduce the riskiness of these strategies "through film study, personnel decisions, and practice." Again though, I would argue that (a) these extra resources are themselves often a Goliath strategy (this becomes evident at high school for sure, but also in college with big differentials in resources, film equipment, practice materials, etc), and (b) practice and preparation is the quintessential dominant strategy -- it neither favors the underdog nor favorite, it's just a good idea!

The upshot is that these are two very good pieces, and well worth the read. I just want to emphasize my earlier point that I am using David and Goliath strategies in a very specific way, and one that differs slightly from Gladwell (it may not even be correct, it's just how I am using it). A true "David strategy" is one that, by definition, would not be good for a Goliath, because it is riskier. I used the example of extra fake punts, onside kicks, going for it on fourth, trick plays, etc. Relatedly, some Goliath strategies are low variance but that doesn't mean they have to be literally three-yards and a cloud of dust.

But the important point that TN clearly does get is that, Goliaths may nevertheless act suboptimally, and it is the underdogs and Davids that might discover the better, dominant strategies. The dominant ones will be adopted by those Goliaths (think of the spread of the spread, with its ability to push boundaries while keeping risk low), and others, though derided mightily as "gimmicks," simply might be appropriate for an underdog. It's not always easy to tell the difference, but this is an idea definitely worth continued exploration.

Friday, 11 February 2011

Are tight-ends an endangered species?

At the NFL level, where nearly every player has already won the DNA lottery, there are plenty of candidates to be effective tight-ends who can both run block like guards and get downfield like receivers -- or at least there are enough to be a force in the league and make every other team salivate (I'm looking at you Antonio Gates). At the lower levels though, finding one of these perfect specimens isn't so easy. And, with the rise of the spread, it is no surprise that tight-ends don't take the field quite as often as they used to. But reports of the demise of the position are overstated.

As an example, one coach recently asked, "Realistically, how much of a problem does a TE as a pass blocker pose in modern football?" He went on to say, "I say this because now that everyone's trying to go to some type of spread and put as many small, quick guys on the field as possible, TEs are becoming an almost endangered species on teams who want to throw." There were other observations about the ongoing usefulness of the tight-end position. Although I agree that just holding up a freak like Antonio Gates doesn't get you far (good luck finding those), I do not think the position is so useless or impractical as some have implied. (Beware, this post is kind of wonky and technical.)

Homer Smith discussed the role of the TE/H-back as a triple threat: he can block, release vertical (in a way that a back cannot), and can block for a few counts and release on a delayed pass, and therefore make two guys cover him. Here is what Homer Smith explained:

It takes a sixth frontal player (not counting the QB) to pull an identifiable pass defender into the front and to give the blockers something to work with to keep the center off the island. It takes the sixth, just as it takes him to deal with a blitz.

Which is a better sixth [blocker, a tight-end or a runningback]? A TE is more of a threat with the delayed pass that makes the pass defender on him stay at bay while the TE blocks the rusher. I think a TE is the better.


Anyway, this is not so black and white, RB versus TE. It's all shades: imagine lining up with a FB in the I. Now the FB cheats over; he lines up in a two-point stance, behind the guard at 4 yards. Now behind the tackle at 3 yards. Now he splits the tackle with his inside leg, at about 2 yards. What is he? A FB or an H-back? He can BOB the linebacker, no? He can still kick out for power, release into the flat, maybe even take a handoff if he comes inside enough. Now he steps over maybe another foot, etc. Now suddenly he's a tight-end/h-back all the way? And all those advantages are lost?

Also don't confuse personnel with position. You can put anyone you want there. I don't see why your RB is some invaluable pass blocker, despite the fact that he has to work on carrying the ball, catching the ball, and blocking in the run game, while the TE is just helpless?

Nothing wrong in HS in having a division of labor for these positions. On most teams I've been around, the TEs spend more time practicing with the OL than they do the receivers. If you want a glorified slot guy, then sub a receiver in and go from there. Or use a FB type (if you're got one).

Bottom line: it's an exceptionally useful thing, and don't be straitjacketed by black and white conceptions. The advantage of the four wide spread was a division of labor thing -- you could put four wides out there and get mismatches against the other team's base personnel, and often get them out of their base looks. You might not have a good TE or fb, so you didn't put one out there; you looked for advantages elsewhere. Nowadays with everyone being spread, is that really the case that just going four wide gives you all these mismatches? I'm not so sure; using a TE -- or alternating between TEs, FBs, and slot receivers -- seems to me the better move.

I consider my base offense to be 3 WR, 1 QB, 1 RB, and then a hybrid H-back position. That H-back position can be a true slot receiver (routes and jet sweeps), a FB, a true TE/H-back (either as a blocker or hybrid guy, though those are quite rare), or even just a 2nd RB. Depends on the guys you have, what you're trying to accomplish, and also your depth (can do a lot of great things if you have a couple of kids who fit the above descriptions and then just sub them in and out to give different looks).

But unquestionably, TE is maybe my favorite position. True, it's not always easy to find a good one, but it helps a lot. (And the two best formations in football might be trips closed and a TE/wing set, with a TE and a wing player to one side, and either a split end and flanker or a twins look).

Finally, one of the concerns was that a tight-end is in poor position to pass protect:

To me, a RB who starts out deeper in the backfield is in much better position to pick up blitzers, chip DEs, or even take a DE 1-on-1. . . . Now, compare that to a TE, who is always on the end of the line and is really only in position to pick up somebody coming off the edge. He also has far less time and room for error in diagnosing a blitz or stunt and getting his body where he needs to be.


I disagree; it is best not to overthink this. One, if you're having that many problems you can always back the TE up to be an H-back so he can see more. Second, you can make a very simple call ("solid") if the DE lines up on or outside the TE and the LB lines up inside. If both the DE and LB come (and don't twist) the tackle takes the LB and the TE takes the DE; if the LB doesn't rush then the TE passes the DE off to the tackle before releasing. You do get into the matchup issues, but it's not so ridiculous like he can't get there or will just whiff. It's just a simple area principle.

Sunday, 12 July 2009

Monte Kiffin goes back to class

To work on how to stop the spread. Sounds almost like Kiffin has been reading this site -- and it certainly sounds like David Climer, for the Tennessean has. The Climer for the Tennessean reports:

Monte Kiffin schemes to slow down Florida offense

Word has it that defensive guru Monte Kiffin is spending a few days in Tampa where he has visited with old friends and compared notes with members of the Bucs coaching staff. . . .

In particular, Kiffin continues to explore ways to counter some of the unique offenses Tennessee's Vols will face this season. Foremost among them is Florida's lethal spread, with Tim Tebow pulling the trigger.

Those who know Kiffin say he has spent considerable time analyzing ways to deal with the divide-and-conquer formation as well as the Gators' across-the-board speed. At UT, it's Job 1.

For all he has accomplished over the past 26 years in the NFL, this is a new test for Kiffin. Just because he developed the Tampa-2 scheme that is all the rage in pro football, that doesn't mean he has an answer for all the questions Florida's offense poses.

Consider this, then, the education of Monte Kiffin. By following his son, Lane, to Tennessee, he has gone to college to get his doctorate in defense.

And he appears to enjoy the challenge. There's something to be said for old coaching dogs and new tricks.

The NFL is a one-size-fits-all league. Everybody uses the same basic offensive scheme, albeit with a few variations here and there. Occasionally, somebody will come up with something new under the sun — Miami's Wildcat formation was all the rage last season — but it doesn't take long for the rest of the league to catch on.

College football is different. Florida runs the spread. Georgia uses a pro set. Vanderbilt runs some option. As a defensive coordinator, Kiffin must adjust from one week to the next.
[Editor's note: Exactly!]

Like he says: "I don't think you can blink or show weakness."

The toughest thing for the 69-year-old Kiffin is to adjust his teaching style to a different classroom. In the NFL, he had unlimited access to players. He could keep them in meetings as long as he wanted. Practices were as long or as short as necessary. It's a full-time job for player and coach alike.

The college game is different. Hands-on time with players is limited. You have a 20-hour work week. And believe it or not, players actually go to class.

"You don't have as much time to work with the kids," Kiffin said.

Too, there is a disparity of talent. The NFL salary cap can level the field. In college ball, the rich get richer via superior recruiting. . . .

Thus, all the coaching expertise in the world can carry you only so far. Just because Kiffin can scheme up a way to get an outside linebacker a free shot at Tebow, that doesn't mean Tebow is going down.

In short, if your X's aren't as big and athletic as the other team's O's, you're in for a long afternoon.


This is also why, for all of Lane's insanity, Monte Kiffin remains a coaches' coach, a favorite among the cognoscenti. He was already a defensive god -- Pete Carroll said he visited him every year and that Kiffin taught him all he knew, and even high school coaches said much the same thing. He just exuded a love for football and an incredible knowledge of it.

Yet here has taken a complete switch by going to the college game, and has had to give himself a crash course in what other teams do. (I would recommend that he compare notes with people other than just the Bucs, but he'll figure it out.) Will his defense work in the SEC? Well there's lots of questions, talent foremost among them. But the point is he's eating it up. He loves the challenge. And that is fun to see.

Ht Blutarsky.

Friday, 10 July 2009

Was Spurrier's offense a failure in the NFL?

Or was it the man that failed?

I vote the latter. Yet, the story to this day, as reflected in some of the (very thoughtful) comments to my recent NFL Offense piece, is that Spurrier's offense failed in the NFL and that this is a significant data point in the storyline that "college offenses don't work there." But I find very little to support the broad form of this statement, and certainly I don't find it very generalizable to what people usually think of when they talk about "college offenses."

First, a modest defense of the efficacy of Spurrier's offense in the pros. He did not set any records in his two years in the NFL. His teams went 7-9 in 2002 and 5-11 in 2003, at which point he quit. His vaunted offense consistently finished in the bottom third of the league in every major category, usually ranked between 20th and 25th in categories like points, total yards per game, passing efficiency and yards per attempt, rushing yards per attempt, and so on. (Source: Pro-Football Reference.) Yet does that make his offense a complete failure? Or just merely weak? And what of the players he used?

Consider two teams whose offenses finished in this same territory in this past 2008 season, with offenses ranked in the bottom third of the league: the Pittsburgh Steelers and, lo', Washington Redskins. The Steelers were 20th in points, 22nd in total yards, and 24th in yards per play; the Redskins finished 28th in points, 19th in yards, and 23rd in yards per play. Now neither offense is considered elite, but neither offensive coordinator has been filed with the epitaph that "their system does not and will never work in this league." They just need to get better, no? (The Steelers' offensive weakness was obviously offset by a great defense, and some of it too was caused by an unexpected in the running game.)

Moreover, the NFL puts a premium on players, who did Spurrier have running his schemes in the Pros? Try these names:

Quarterback: 2002 - Shane Matthews, Danny Wuerffel, and Patrick Ramsey (rookie); 2003 - Patrick Ramsey and Tim Hasselbeck (yeah, the other Hasselbeck).

Runningback: 2002 - Stephen Davis (who missed four games) and Kenny Watson; 2003 - Trung Canidate and Rock Cartwright.

Receiver: 2002 - Rod Gardner, Derrius Thompson, Darnerian McCants, and Chris Doering; 2003 - Laveranues Coles, Rod Gardner, Darnerian McCants.

Seeing this list, wouldn't the bigger surprise be that the offense did in fact finish higher than bottom third of the league? Indeed, NFL films, in its typical chicken-salad-out-of-chicken-scraps season review tried to turn Gardner and Thompson into some kind of modern day Lynn Swann and John Stallworth, as the video below shows:



But a more realistic appraisal -- and a bit of history (Thompson was out of the league by 2004, and the other leading receiver besides Coles, Darnerian McCants, was out of it by 2005 -- reveals something altogether different. See the below "highlight" video of some of Gardner's best dropped passes:



Of course both Stephen Davis and Coles were legitimate players and did not help much (and Davis apparently felt unwanted or incorrectly used), but without a quarterback the rest is moot, and you're not going to win many games with a combinations of Matthews, Wuerffel, Ramsey, and Hasselbeck at the helm. Indeed, no one else has won with them. The problem was that Spurrier tried to.

The second point is that, even if you call Spurrier's time in the NFL a total bust, offense and all, it's just not a great example to use in the general argument about "college offenses" not working in the pros. When people have that discussion they are usually talking about why an option-based or a spread offense won't or can't work there. But what is Spurrier's offense if not pro-style? He relies exclusively on a dropback passer, he frequently uses a fullback, and the routes he uses came from the NFL. Insofar as his offense had some kind of unique element (at least for its time), it was that he let his receivers read coverages on the fly and adjust their routes accordingly -- a technique more complicated and thus more appropriate to the advanced NFL. See the below diagram of Spurrier's variation on "smash," whereby the receiver can run a curl underneath the cornerback against cover three, or will break for the corner if the cornerback stays close to the line.




Moreover, his offense was largely based on a very pro-style dichotomy: his base run play was the lead-draw, which allowed his linemen to largely pass set and his QB to get a look at the defense. The basic diagram of the play is below.



And if the defense came up on him he went to play-action off of a lead-draw look. This was ingenious, because he could both show a run play yet his linemen could pass-set and his quarterback could get a look at the defense downfield. See one of his most common plays below, where combined with the lead-draw were routes where the receivers also adjusted their patterns on the fly based on the coverage.



Focusing so heavily on the lead-draw and fake lead-draw also gave him the advantage of setting up his normal dropback plays as well. Check out the highlight video from the 1996 SEC Championship for some good examples.



And compare all this with what Urban Meyer does at Florida now. That is what people mean when they say "college offense." And if they don't mean that they mean the option of a Nebraska or what Paul Johnson does at Georgia Tech. Regardless whether you buy those arguments, the success or failure of Spurrier's drop-back and play-action pass-based offense seems wholly irrelevant to the discussion.

Then why did he fail? As I indicated at the beginning, to me, it was not the offense, it was the man as head coach. Being an NFL head coach is about many things, but calling the plays is a very small part of it, and it is a part that can be (and maybe should be) delegated to someone competent. As stated above, the talent situation was a huge mess and was in total flux, with a bunch of Florida cast-offs (I loved Chris Doering and Wuerffel in college but come on), several high-priced busts (Chad Morton?), and no quarterback to speak of. These are faults that reflect on the man, but not necessarily on the schemes. And really, the narrative is that the schemes probably got too much hype all along, as is common. (And keep in mind that Joe Gibbs won only six games in 2004 and only five in 2006.)

They were ingenious but that is different from him being a genius, and of course he had the talent at Florida to make it go. He also, it must be said, arrived at the right time in history when the spread and pro-style offenses had really just begun to supplant an older, earlier way of thinking, especially in the SEC. But in addition to the lack of institutional advantages for Spurrier in the Pros as opposed to his time at Florida, he also lacked the preparation to make it go. I don't know about discipline and all that, but there were enough stories of the franchise's disorganization to affirm that he did not have a handle on the bundle of intense personalities that makes up any NFL team, and certainly did and continues to make up the Washington Redskins in particular.

Yet there was one scheme criticism that got much play that was in fact true: his inability to gameplan pass protection. Spurrier won his first NFL game against the Arizona Cardinals where his offense scored 31 points, but in his second, against the Philadelphia Eagles and blitz-happy defensive coordinator Jim Johnson, he was fundamentally outcoached on the way to a 37-7 blowout. And that was the beginning of the end.

But he was not outcoached in some fundamental "college offense won't work in pros so there" way, but instead he fell victim to the 80/20 principle I talked about: Spurrier ran a pro-style system, and if you're going to do that in the pros you better be ready for the meat grinder that is their film study. Johnson, a wily guy who has been around the block a few times, devised one blitz after another that got to the core of Spurrier's protections and never let him out. (Incidentally, this gets to one of the common criticisms of my NFL bit, which was that I couldn't be serious saying that the NFL wasn't complex. But I never said that; I said it was bland yet, within that blandness was incredible complexity on the micro scale. A lot of college guys have said if you introduced more macro variation you could reduce the micro complexity -- i.e. a million blitzes you have to gameplan for -- but that's something for later.)

So what's the verdict? Spurrier failed, but it was not his "college offense" that let him down, it was the man, his overall lack of control of players, his roster management, and his own coaches, and in no small part the inadequate planning that went into his "pro-style attack."

Tuesday, 7 July 2009

The NFL Offense: What is it? Why does every team use it? And how does it differ from college?

I am frequently asked why I don't more often discuss NFL offenses. Haven't many of these college gurus been chewed up by the NFL? Didn't the NFL "prove" that the run & shoot can't work? Isn't the NFL football's highest level, and doesn't it therefore have the most money and resources, the best people, and shouldn't the result then be that NFL football is the most strategically interesting?

Yes and no. There's several reasons why I devote less space here to what NFL teams do than for college teams. Far and away the most significant reason though, is that, somewhat counterintuitively, NFL offenses are surprisingly bland and homogenized. Not entirely, but as a rule of thumb, 80% of what NFL teams do on offense (or defense, really too) is extremely straightforward to the point where every team runs the same stuff. And the list is not that long. In an appendix at the bottom, I have cataloged basically the entire set. Most notably, the whole NFL's entire run game amounts to about four or five plays: the inside zone (also known as the "tight zone"), the outside zone (also known as the "stretch play" or the "wide zone"), power, counter, and some kind of draw, particularly the lead draw. No matter what cosmetic deceptions you see when you watch an NFL game (and remember, these cosmetics are supposed to be good enough to fool the opposing coaches who have studied film all week), you're seeing the same plays over, and over, and over again. There is some admitted monotony to this. Indeed, after today, having sketched out a great deal of this 80% of the NFL's offense, there won't be much need for me to come back to what a specific NFL teams do.

But what of all those stories of Jon Gruden or Andy Reid getting only 45 minutes of sleep a night (and of course sleeping in their offices), and all the film study, 500 page NFL playbooks, and lengthy gameplans buttressed by exhaustive statistical analyses. This is the other 20%, which often is interesting. But it is interesting in a very specific way -- within the framework of the basic, repetitive concepts that compose the other 80%. NFL coaches are understandably obsessed with "matchups," a word favored by every football talking head. The coaches spend an incredible amount of time focused on how to get this receiver to go against that safety, this blitzing linebacker against that tight-end, or this pulling tackle against that defensive end. It's an evolving, repetitive, circular, intensive battle.

Yet is of limited ongoing or generalizable significance. Let's say an NFL coach wants to run the counter trey, which is a run play where one lineman pulls and traps (i.e. blocks from the inside out), and another blocker (either lineman or tight-end) leads (i.e. goes up into the crease and looks to hit a linebacker). He might alter the assignments, or use a particular motion or shift or formation, because he wants the kick-out block to go against a certain guy and the lead against another. And, if successful, you, as spectator, probably won't notice what he did: the coach wasn't looking for a pancake block, just "success," which might be as simple as the blocker's getting in the way enough that the runner could get four yards. This "matchup" isn't always as dramatic as you might think. This does not demean its importance, but, from my perspective, does not always lend itself to lengthy, repeated examples.

Moreover, getting into this minutiae requires a great deal of digging and backstory. What have these teams done in the past? Who is injured this week? What is the history between the opposing coaches? I have discussed some of this type of thing before, for example, here. But again, this great complexity ironically flows from a rather bland and homogenous set. The NFL appears populated by eternal, diligent tinkerers rather than broad thinkers.

Television's role

There's a final reason, however, that I don't routinely get into detail with NFL offenses: I'm not convinced the NFL wants anyone to. Whether a marketing decision or one to placate paranoid franchises --word is guys like Mangini are exceptionally controlling of the flow of info, including requiring people to burn and destroy film or handouts -- NFL films does not actually make this footage available, and most of what it shows are such extreme close-ups that it is impenetrable from a strategy perspective. Part of the theory is undoubtedly the desire to overcome the fact that it is marketing a sport where all the players wear masks, something the NBA and golf and most other sports don't have to deal with.

Unfortunately, the result is that it's impossible to get a sense of what is going on during a play: the quarterback releases the ball, the ball floats magically in the air, and the receiver appears like an apparition out of nowhere to catch it. And the practical questions remain. What coverage were they in? What route did the receiver run? What complementary routes did the other receiver run? Who rushed the quarterback? Who picked up those rushers? It's impossible to tell. Take the clip below of the 49ers's dramatic, waning minutes victory over the Bengals in Super Bowl XXIII.



There's a couple of times where you can get a sense of a route or two, but there's not one play where I could (a) diagram the play in its entirety, i.e. all the receivers, or (b) more importantly, tell you what exactly the defense was doing, particularly the secondary. On the big pass to Jerry Rice over the middle, it's clear he ran a dig route, but it's not clear why he was so open. And then the voice-over goes so far as to tell you the actual name of the game winning touchdown play, yet could you tell me what any of the receivers besides John Taylor did on the play? Wouldn't the coverage on Jerry Rice, who would up MVP of the game, have been relevant as to why Taylor was so open? (Both Bill Walsh and Joe Montana later diagrammed the play in their books; there was actually a problem with the playcall as meshing with the formation.)

Fine, that's NFL Films. But what about watching the game on television? Yes, you get some replays, but generally it is not much better. You're lucky if you see the linebackers. Homer Smith once gave advice to people who watch football on television: Don't watch the ball, watch the defense -- you'll never miss where the ball winds up going. Yet he admits that with modern angles this advice is often impracticable. Ironically, too, the NFL, with more money (and likely its intent to market personalities) affixes its camera angles tighter than do college broadcasts My sense is that many college games can only afford a couple of cameras, so they pick a couple that can get a flavor for more of the field. The NFL instead overdoes it.

Why so simple?

That 80% of every NFL teams' offense consists of the same bunch of plays run over and over, combined with the inadequate broadcast techniques that robs the viewer of the ability to decipher the minute game-within-a-game adjustments that are going on, helps explain why it is not always worth it for me to discuss with great specificity what each NFL team does. But that still doesn't answer why NFL offenses are like this. (Defenses have the same issue of 80/20 blandness, though they will sometimes give incredibly exotic looks solely due to the freakish nature of some of the players. NFL cornerbacks can constantly play "press-bail" -- meaning they can show bump and run and yet be able to "bail" and play deep if necessary -- because they are so athletic, and I've seen guys like Ravens safety Ed Reed do miraculous things like line up directly on the line of scrimmage over a tight-end and then at the snap retreat and play deep half-field safety on the opposite side of the field. Other than the kind of stuff that you can only do if you've won the DNA lottery, NFL defenses all tend to be the same as well.)

Theories abound to explain the phenomena. Ones often trotted out: NFL coaches are closed minded; they don't understand the option/spread/wishbone/etc; the speed of the game is much greater than it is college; it's all some sort of conspiracy; and, finally, we have it all backwards, and this NFL-homogenity is actually somehow better, we're just missing it.

These can be dealt with in short order. The NFL has the most money and pressure at stake, and coaches have little job security. There is no reason for them to be so closed minded. And they certainly do understand the option. Many have coached at other levels before, and, though they might not be experts, it doesn't take long to explain how the option and the spread work and why they have been effective. The conspiracy stuff is bunk, and I think it can't be argued that the NFL is not homogeneous or monotonous, and, in theory at least, more diversity would be better, no? Most of the NFL offense defenders argue that the players make it worthwhile to do this, or the passing game is what makes it all necessary, or there is some hidden meaning we're all missing. (This argument is more common than might be initially guessed, and usually takes the following form: "The NFL is better because all that stuff is just a bunch of gimmicks," with "gimmick" being the derogative catch-all term for anything that breaks out of the 80% mold delineated in full below. As described below, one unfortunate plank of this argument is the reliance on the idea of "ideal" football.)

The speed argument is more difficult to discard, though I think for now we can ignore it. On the one hand, the idea that the defense is faster suddenly dooms all these schemes common to college seems bizarre considering that the offensive guys are (or should be?) faster too. Thus, relatively, there is no speed advantage. On the other hand, if NFL players are all both bigger and faster, then in practical terms the field itself has shrunk, even if the players are relatively the same. Yet on the other, other, hand, with more straight ahead speed and better quarterbacking, teams can better stretch the field vertically. On the whole, unless someone wants to do some real studies, I find this rather inconclusive.

There are three arguments that I think do help explain the NFL 80/20 blandness. Note however that not included in this list is the meme popular among the NFL itself (and those announcers!) that what they do is simply "better." The problem with this idea is that "better" begs too many questions: Better than what? Better how? Better as a professional offense with professional players, or better for high school players too? What is better considering that there is time to integrate any concept you want into your playbook? Isn't the "better" thing then just the more time and resources you have? So I leave this aside.

The three are:
  • Coaching incest. The NFL fraternity is too incestuous, and thus they don't get out of their comfort zone enough and don't seriously engage with what is going on elsewhere.

  • Lack of incentive to experiment.Related to above, but the idea is that, post free-agency, there is little reason for NFL coaches to "think outside the box," and when they do and fail, they will be ridiculed and fired. For example, Marv Levy famously went to the Wing-T offense with the Kansas City Chiefs in the late 70s and early 80s, and was promptly fired.)

  • The quarterback obsession. The money and necessity involved with NFL quarterbacks has so come to dominate the thinking and strategy behind the sport that it hampers both experimentation but literally what they have time to do. If you ask an NFL coach what he spends his time on, or why they don't use more run plays, and he will likely tell you that they spend all their time on pass protection and protection schemes, and this cuts down on what else they can do.
I think all three of those ideas have some merit. The incest idea sounds a little odd, but then you remember that the vaunted "Wildcat" offense was brought to the NFL by David Lee, former quarterbacks coach at Arkansas.

The second I think is underrated but important. Lost in the debate about who is more innovative, the NFL or college or high schools, is their institutional capacities. It doesn't surprise me that the most sophisticated zone blocking techniques or pass protection schemes -- or even five or seven-step drop pass patterns -- are usually developed in the NFL. The margins are quite thin there because the personnel is so good and every team has a salary cap. This stuff is their bread and butter, and they will constantly tinker with it.

But what incentive does an NFL team have to just say "screw it, I'm going to do something weird." Very little. Even the moribund Detroit Lions don't really have this need; the Miami Dolphins went from worst-to-playoffs, though with a little help by being different. Different helps but we're not talking about extremes.

In college or high school, however, you have teams that are completely downtrodden, as in winless in years downtrodden. There is no reason in these scenarios not to experiment. Of course, everyone knows that Rich Rodriguez's "zone read" offense was born at Glenville State where he said his entire goal was "just to get a first down." There are a lot of really bad Division I programs, but even more bad or obscure small colleges, and thousands more high schools. Indeed, for all the talk of the "Wildcat" as a "college thing," it really was a high school thing. Gus Malzahn ran some similar stuff while a high school coach, and insofar as Houston Nutt and others had their input the shotgun jet-sweep offense which the Wildcat is but one strand of is something that has exploded at high school level but hasn't really made its way to major college football. NFL coaches would do well to keep their eye on the lower levels to see what broad, new, general ideas spring forth. (A final X factor is the issue of practice time: Major D-1 colleges have just about the least practice time at any level, and high schools of course have to spend so much time teaching fundamentals that strategy is secondary. As a result there is what I call variation by hedgehog, meaning that you get variety by having a bunch of teams focus on one or two things they do really well, compared with the NFL where teams try to do a bit of everything.)

Finally, this third issue cannot be discounted. Bruce Arians, now offensive coordinator for the Pittsburgh Steelers and former quarterback coach for the Indianapolis Colts, once did a bit on defeating the zone-blitz. His basic thought was about protecting the passer: the importance of planning for the zone-blitz and protecting the quarterback at all costs. Then, at the end he wrote: "P.S. If your quarterback doesn't make $48 million then don't forget the lead option."

Coming from an NFL guy, that's damn near heresy. Of course the quarterback he was referring to was Peyton Manning (though I haven't seen Roethlisberger run any option either), but here's the thought, expanded out. Yes, quarterbacks are incredibly important, and must be protected. You have to spend a lot of time focusing on this protection, getting it right, and calibrating your matchups on top of it all when you have freaks of nature as pass rushers. (I wrote a lengthy article about pass protection here.) That's fine, do what you have to do to protect those guys.

But what Arians hinted at is something a lot of coaches believe: instead of focusing all your energy on trying to scheme your way out of all that crazy, myriad blitzing from everywhere that causes you to drop everything week to week and focus solely on that to the detriment of the run game, then why not focus on what might deter that kind of blitzing in the first place? Like option, or certain spread sets, or other things that college teams do a pretty solid job of right now. Sometimes, rather than bang your head against the wall, there's a better way.

Now this gets into the question about letting some team hit your quarterback, and involves other questions beyond the scope of this article. No one thinks running the option with Manning or Brady is a good idea, and their passing skills are so good that it probably wouldn't be worth it anyway. But is great passing ability exclusive of great running ability? And if it is not, then does running the option significantly increase the risk of injury? How much worse can it be than David Carr being sacked countless times in a season, mostly by being hit from the blindside mid-throwing motion? I'd probably rather be hit while running the ball than like that.

The wildcat and beyond

This is where the wildcat stuff becomes intriguing. The theme for this offseason seems to be that every team is studying the wildcat or looking to install it. There's strategic reasons for this and there's practical ones.

The strategic reason is that the arithmetic doesn't lie: When you run the ball and your quarterback stands there just watching the play, his defensive counterpart can assault the runner. And even if his counterpart holds back, the runner's counterpart remains unblocked; you win games by getting the defense to commit two players to one of yours and thus gain an advantage. The wildcat -- as with the triple option or shotgun spread offense where the quarterback is a run threat -- does this. That's why I predicted back in September 2008 that the wildcat would not be "gone within a week" as several commentators so confidently explained. Indeed, it appears to be gaining momentum.

The second reason is practical. The colleges the NFL drafts from are producing these kinds of multi-skilled players, and NFL teams ought to be able to employ some of them in these schemes without having to risk their $48 million quarterbacks as the bait. E.g., Pat White. That's why this concept has potential for growth, and NFL coaches seem to embrace it now. (How bizarre though that they seem to be embracing this one rather specific branch off what is a much wider and older tree of single-wing/spread/option football. Maybe its apparent newness allows them plausible deniability about having ignored what has been put to good use for decades.)

I will have a future post delineating how I think the wildcat will be used and expanded upon this fall. Unfortunately, I don't see the storyline being quite so rosy as the NFL finally breaking down and going all out with Eric Crouch types at quarterback. I can safely predict that some of the teams that are discussing their wildcat will be completely inept with it: they will do things like going five-wide with their quarterback split out, their runningback or wideout alone in the backfield, call for no motion or faking, and then expect him to plunge into the line for some kind of great effect. That team, its coaches and its fans, will declare the Wildcat a bust. Some other team, maybe the Dolphins again, will expand the package and see success with it. But then what? The worst case -- though possibly the most likely -- will be this:

The offense will fade from prominence, and will be relegated to NFL Films productions about the "WACKY WILDCAT" days of yore, where they will show somebody running free downfield while they speed up the footage and play Benny Hill music. Then they will show a clip of someone stuffing a particular play, and the voice-over will announce that the Wildcat, like all other gimmicks, was figured out and defeated. The NFL types will nevertheless congratulate themselves for having discovered it in the first place. Someone will be called on air to talk about how it was a travesty of the game, in some bizarre platonic ideal sense.

But there is a slight counter narrative. One is that the wildcat, as some kind of hype-machine and maybe even explicit look will die down, but the concepts will infiltrate the NFL and it will finally, and slowly, co-opt ideas that have been successful in every level of football elsewhere. Some will still deride the flashes as gimmicky, but seeing as that most didn't understand it to begin with, most probably won't even notice. Take a look at the clip below: the Ravens, using Ohio State quarterback Troy Smith ran the zone-read, and the highlight guys began a small war on what to call it. (Smith also takes a rather bizarre inside angle with his run.)



Conclusion

Time will tell where all this goes. For now, however, I expect the NFL Offense to remain as indicated, with just a flew flashes of the wildcat and other similar elements. But maybe with more, and cheaper, players who can execute these schemes the NFL will be forced to adapt them to its own ends. And maybe that will even help protect its quarterbacks.

APPENDIX - The NFL Offense

Formations may differ, as will motions and a few little quirks, but basically this is what every single NFL team does. They might have a wrinkle or two per week; they might adjust the formations so they get their Pro-Bowl receiver running the route they want; they might run each play from everything from a three tight-end set to a spread formation; but it is all there. It is a partial sketch below. There are some I have diagrams, and with others I have links to old articles either instead of or to supplement the diagrams.

(1) Run game


- Inside Zone, a.k.a. "tight zone"



- Outside zone, a.k.a. "wide zone" or "stretch" (either regular blocking (shown below, diagram courtesy of Trojan Football Analysis) or "pin and pull")



- Counter



- Power



- Lead draw (draw play with a lead back)




(2) Quick passes

- Hitch

- Fade/stop, fade with an out, and double slants



- Stick (more to come on this concept)

- Spacing


(3) Dropback passes (including play-action)

- Curl routes



- Smash

- Post/Dig, a.k.a. "NCAA Pass"



- Flood/sail



- Four verticals (trips and regular), also lots of deep comebacks off the four verticals to the outside guys (either by call or read)

- Levels

- Three-verticals (either with corner routes or go routes)



- "Mills," a.k.a. Cover 4 beater



- Shallow series (for more on the drag and drive series, see here, and for a comprehensive look at the shallow stuff Mike Martz ran with the Rams, see here)



- Seam and square-in/other downfield passes like double-post



(4) Movement passes

- Bootleg. Everybody runs the same bootleg passes, one with the fullback faking the counter and running to the opposite flat, and the other the basic one with one guy to the flat after a count as a blocker and another dragging behind him.



(5) Screens

- Slow screen to RB and TE. Also will use double-screens or read-screens with the slow screen combined with either a sail or drag type route

Thursday, 2 July 2009

Football, decisionmaking, and the brain

One of the many reasons that football is the greatest of all games is that it encompasses every type of decision we humans are capable of. There are the carefully planned decisions coaches make leading up to a game: Who should start? What will our opening plays look like? How can we defend against this scheme? There are snap, in-the-moment athletic judgments: Who has the ball? Is the receiver open? Is the hole inside the guard or outside it, where will the running crease be? And there are what I call "golf swing decisions," which combine the reflective moment with the snap-athletic judgment: When should I snap the ball to time up with the motion man, while still getting off a good snap? I need to blitz through the A gap between guard and center, but what if they are in a slide or gap protection scheme and close that off? Should I try a rip or swim type move? I'm receiver and need to run an out route, but when if the cornerback comes up and jams me and I need to run a go route, how should I use my hands, eyes, etc?

Football shares the need for snap, athletic judgments with most other sports, like basketball or soccer. But it is unique in that every four-to-six second contest is preceded by a complete stop where everyone has some time to collect their thoughts -- or to heighten their anxieties. Baseball has some of this, insofar as pitchers have to think about the type of pitch they want to throw and where, but even if batters could get a handle on the pitchers' rhythm, the human brain cannot rationally break down what a throw is when it is coming in at 90 miles per hour -- it must be an instinctual swing-or-don't-swing response.

In a later post I plan to break down more of the cold, rational, time-intensive decisions and where those decisions break down. I'm interest in which decisions are "predictably irrational," and can they be fixed? Also, what heuristics do coaches and sometimes players use that correctly and incorrectly inform them? But today I limit myself to the raw, instinctual, athletic intelligence that football players must possess or be gone.

Athletic intelligence

Very rarely does a football player use their "rational brain" during a game the way solving a math problem would. Jonah Lehrer, in his book How We Decide, tells a story about Tom Brady. He describes Brady's mindset as an elite quarterback in the pocket which -- especially considering that quarterback is considered maybe the "most intellectually demanding" of all sports positions -- is surprisingly instinctual and unthinking. He drops back and scans his receivers. He gets to one and simply lets the ball go. Brady is asked: "Why did you throw it to that guy?" He replies: "I just felt like he was open." That's it. That's it?

Yes. There really can't be much to it than that. A QB might have an idea of where he might throw it, as his rational brain can do some early legwork, but the ultimate decision is by the emotional, reactive parts of his brain. (Lehrer and others get into the neuroscience of this, which I am not equipped to discuss.) The brain, getting some kind of positive feedback, tells the muscles to release the ball. And how could it be otherwise? These decisions happen much too fast for any person to coldly and rationally walk their way through it. The quarterback must simply know.

(Note that this is not saying that emotional or instinctual intelligence is better than rational intelligence, or vice versa. It is that some situations call for different types of decisionmaking. Indeed, my general assumption is that attempts atrational decisionmaking is usually better (which is in fact not always true), but many times, including in sports, there is no time for some sort of reasoned analysis. Contra this post then with Gladwell's Blink: The Power of Thinking Without Thinking.)

This need for amazing decisionmaking that is nevertheless largely reactive is one reason why it is so difficult to evaluate quarterbacks -- or any player. You only get so far by asking Tom Brady "why did you throw it to him" when his answer is "I felt like he was open." And that's with quarterbacks: obviously safeties on defense, or linebackers, or linemen, runningbacks, all rely more or less on this raw emotional intelligence rather than something coolly rational. How do you measure that kind of instictive, non-descriptive intelligence? Yet if a guy doesn't have it, he'll just kill your team with bad "decisions."

Yet what does the NFL use to evaluate its players' intelligences? The Wonderlic Test. Having just seen the above discussion, where not even Tom Brady's athletic intelligence is necessarily rational or describable in the way a mathematician's or philosopher's is, how useful can this test be? Yes, it can help eliminate some total knuckleheads, in that NFL players must learn large playbooks (and in college must be able to stay eligible lest the idea of student-athlete be completely severed), but most of what makes them elite or not is based on how they react.

When a linebacker just knows that a play-action fake is indeed a fake, or that the runningback still has the ball after misdirection from a wide-receiver faking a reverse, he uses very little if any of the skills tested by the Wonderlic. Yet I do sympathize with the NFL: how else can you test this stuff? But what if having a really high rational intelligence not only didn't help or didn't test what made a player good or great, what if a heightened analytical ability made a player worse?

Eli and Peyton Manning and David Foster Wallace

This is where the "golf swing" intelligence can come in; it's also often called "paralysis by analysis." Think about getting ready to swing a golf club while a friend or pro tries to coach you up. "Keep your arms straight." "Turn your hips." "Keep your head down." "Keep the club face square." "Choke down on the club." "Loosen your grip." "Bring your arms through before you start moving your shoulders, but keep your head down." "Keep the club face square but also rotate your wrists so that you finish with a good rotation." Etc. A friend of mine told me that he had one such session, where a pro told him about ten things to do before he swung the club, and then just sat there a minute before swinging. The pro said, "What are you thinking about?" His reply, "All the stuff you just told me."

Now here's a fact you may not know.

Question: Which Manning brother had the higher Wonderlic score?

Answer: Eli. By a long shot.

Peyton's score was perfectly respectable: a 28, higher than average for his position in fact. Eli? A 39, which put him in the 99th percentile of all NFL players -- as well as the 99th percentile of all two-million test takers. As Charlie Wonderlic said of Eli's score, "There's not a job on the planet that requires a person to score at that level." But who would you rather have making decisions for you on gameday? I thought so. Of course, Eli has improved, but there's no question that Peyton is the more consistent decisionmaker. Indeed, all too often Eli looks uncomfortable, like he has overthought the whole process of "just throw the football to the open guy." (Tom Brady, who scored a 33, is also not known as a hyper-analytical guy, though some of that is hearsay.)

And again, this is quarterback, supposedly the marquee thinking-man's position in all of sports. Obviously defensive backs and tight-ends don't need the same level of analytical ability as quarterbacks do. And yet, after games, what kind of questions do reporters ask? You got it: "What were you thinking out there?" "What did it feel like?" And the answers are almost always completely banal (and where they are not they are probably fake): "I just take it one play at a time. Keep doing my best. Focus on the basics, you know." "I'm just really happy. It feels great to contribute. We've all worked really hard."* Really, of what use is it to ask Santonio Holmes what was going through his mind when he leaked out to the corner of the end zone and made a miraculous, extended catch to win the game? "You know, I had been thinking about this great Henry James novel most of the time, but I regained focus when I saw the ball's trajectory and calculated that, based on its particular rotation speed -- as far as I could detect -- I should place my hands in a particular way and I also calibrated my feet so as to minimize the chance that if I slipped I might get any white ink on my shoes so that the ref might call me out." Uh. Holmes was plenty eloquent after the game, but the bottom line is: the ball was in the air and he made a fantastically athletic play. Any analysis might have been counter productive.

The late David Foster Wallace discussed this in a review he did of a biography about tennis prodigy Tracy Austin. I think it well sums up the dilemma that players, coaches and fans have in trying to understand athletic genius, which not only might be distinct from rational genius, it might be the antithesis of it.

It remains very hard for me to reconcile the vapidity of [an athlete's] narrative mind, on the one hand, with the extraordinary mental powers that are required by world-class tennis, on the other. Anyone who buys into the idea that great athletes are dim should have a close look at an NFL playbook, or at a basketball coach's diagram of a 3-2 zone trap . . . or at an archival film of Ms. Tracy Austin repeatedly putting a ball in a court's corner at high speed fro seventy-eight feet away with huge sums of money at stake and enormous crowds of people watching her do it. Ever try to concentrate on doing something difficult with a crowd of people watching? . . . .

It is not an accident that great athletes are often called "naturals," because they can, in performance, be totally present: they can proceed on instinct and muscle-memory and autonomic will such that agent and action are one. . . . They can withstand forces of distraction that would break a mind prone to self-conscious fear in two.

The real secret behind top athletes' genius, then, may be as esoteric and obvious and dull and profound as silence itself. The real, many-veiled answer to the question of just what goes through a great player's mind as he stands at the center of hostile crowd-noise and lines up the free-throw that will decide the game might well be: nothing at all. . . .

This is, for me, the real mystery -- whether such a person is an idiot or a mystic or both and/or neither. The only certainty seems to be that such a person does not produce a very good prose memoir [or descriptive post-game interview]. . . . It may be that we spectators, who are not divinely gifted as athletes, are the only ones able truly to see, articulate, and animate the experience of the gift we are denied. And that those who receive and act out the gift of athletic genius must, perforce, be blind and dumb about it -- and not because blindness and dumbness are the price of the gift, but because they are its essence.


This seems backed up by experience. Great players do not always make great coaches (or announcers), and often the "smartest" kids are "dumb" athletes. I will finish (for now) with a quote from a friend who is a high school coach, which I think for now provides about as good a summation as any of the awkward interplay between thinking and doing, "such that agent and action are one":

Give me the 2.5 GPA kids. I'll take them all day, everyday. Smart enough to know what's going on, too dumb to know when something is going to hurt, and not smart enough to remember what hurt last time.


*FN: These quotes are also roughly paraphrased from Wallace's fantastic essay, but since it's all so common anyone who has ever seen a post-game interview could fill these in.

Tuesday, 30 June 2009

Why you can't just play "assignment football" against the flexbone/triple-option

The Navy blog "The Birddog" has a great post breaking down elements of Paul Johnson's flexbone offense. The videos he culls exhibit something I've tried to explain about defending Johnson's offense: you can't just play "assignment football." That term gets thrown around by announcers a lot, with the implication being that all you have to do is "assign" one guy to the dive back, one to the quarterback, and one to the pitch back. The problem is that Johnson will figure out your assignments and change his blocking schemes accordingly. For example, compare the two videos below, again, both courtesy of The Birddog.



Okay, so the safety ends up making the tackle on the pitch back, while the cornerback forced the pitch by taking on the quarterback. Johnson saw that, and on the very next play, called the same play to the other side, but with one important difference: the near slotback blocked the safety -- i.e. the guy responsible for the pitch back. So who now has the pitch back? Let's find out:



Answer: No one. That Paul Johnson, he's crafty. This is basically what happened when those Georgia Tech teams put it together last season and whupped up on teams. Indeed, his offense had a rather high degree of variance, considering that in some games against weak opponents it did little but in others, including against Miami and Georgia, the second half was defensive armageddon. I think the Miami game in particular was an example of a defense that had a plan for the flexbone going into the game, a decent one, but Johnson figured it out about halfway through and Miami lacked the ever important counter-to-his-counter. And once Johnson started messing with UM's defensive assignments, the defense got stretched out, and then plays like these happened:





(Ht Dr Saturday.) I will have more to say about Johnson's flexbone before the season begins, including some thoughts on defending it.(Preview question: how do you deal with the flexbone's triple scheme -- which can easily outflank the defense to one side of the field -- with the flexbone's immediate pre-snap threat of four-verticals? Keep in mind that adding another defender to the box tends to force you into a single-safety defense, which is precisely what four verticals is designed for. More on this later.)

But for now, savor last season's mutlifarious brilliance of option football writ BCS. The flexbone-triple:



End note: As a final bonus, it appears the good people at EA Sports have added more passing to the flexbone. In the video below, the old run and shoot "choice" route is shown. (Ht EDSBS.)



I'd like to think they got this from me, but all of us like to tout our self-importance, no?

Monday, 29 June 2009

Repost: Preview of Nick Saban's Alabama defense

[Ed. Note: This was originally posted last season as part of an Alabama - Clemson "coaching preview." I thought that now, in the doldrums before the season, the portion dedicated to Nick Saban could be reposted.]



Nick Saban: Still Billy’s Boy

Saban has been coaching defense – and coaching it quite well – for decades. But there is no question that the defining period of his coaching career was 1991-1994, when he was Bill Belichick’s defensive coordinator with the Cleveland Browns. Just knowing that tells you a great deal about Saban’s defense: he (primarily) uses the 3-4; he’s very aggressive, especially on passing downs; he wants to stop the run on first and second down; he’s not afraid to mix up schemes, coverages, blitzes, and looks of all kinds; and, most importantly, he is intense and attentive to detail, which is the hallmark of any great defensive coach.

Let's allow Saban to explain his defensive philosophy in his own words. From one of his LSU defensive playbooks:

“[Our] philosophy on first and second down is to stop the run and play good zone pass defense. We will occasionally play man-to-man and blitz in this situation. On third down, we will primarily play man-to-man and mix-in some zone and blitzes. We will rush four or more players versus the pass about ninety-percent of the time.

“In all situations, we will defend the inside or middle of the field first – defend inside to outside. Against the run, we will not allow the ball to be run inside. We want to force the ball outside. Against the pass, we will not allow the ball to be thrown deep down the middle or inside. We want to force the ball to be thrown short and/or outside.

“… Finally, our job is to take the ball away from the opponents’ offense and score or set up good field position for our offense. We must knock the ball loose, force mistakes, and cause turnovers. Turnovers and making big plays win games. We will be alert and aggressive and take advantage of every opportunity to come up with the ball . . . . The trademark of our defense will be effort, toughness, and no mental mistakes regarding score or situation in any game.”

None of this is revolutionary and much of it is coach-patois (there is another section in his playbook where every position is required to put in “super human effort” or else they are deemed to have failed), but it’s a good place to start. Most good defenses begin with the premise that, to be successful, they must stop the run on first and second down to force known passing situations on 3rd down. (Which is one reason why Bill Walsh – in words far too often unheeded – advocated doing much of your dropback passing on first down.) Indeed, the book on Bob Stoops’s defense is known to everyone: first and second down expect an eight-man front and on third down you will see some kind of base or nickel personnel zone-blitz. No mystery there. A final brief prefatory note is that while Saban bases out of a 3-4, he quite commonly has one of his linebackers put their hand down and line up as would a 4-3 defensive end.

So let’s get a bit more specific. First I’ll discuss what is maybe Saban’s most common defense, Cover 1 Robber. Second, when Saban does use zones on known passing situations he likes the overload blitz and the common 3-3 zone blitz behind it, so I’ll show a basic example of what this might look like. And finally, I’ll discuss a couple coverage techniques that Saban likes to use.

Cover 1 “Robber”

Cover 1 is maybe the most common defense in the SEC. (Though “Cover 2” is close if you lump together all its variants.) Base Cover 1 is quite simple: the “1” refers to a deep safety who aligns down the middle, while all the offense’s skill guys are covered man to man. This doesn’t necessarily mean it is bump and run – it could be loose coverage – but it often is bump and run. The defense needs a great centerfielder back at Free Safety who can stop the deep ball and cover sideline to sideline.

The nice thing about this defense is it is simple and, once you’ve locked in five guys in man and a free safety, you can do whatever you want with the other five. And, maybe most importantly, with just one free-safety deep, the defense can get in a lot of eight-man fronts. On passing downs, the defense can find ways to creatively blitz five guys, have a deep safety, and all the while still account for all five of the offense’s receivers. The defense cannot really outnumber the pass protectors, but it can still collapse the pocket. That’s base Cover 1.

Cover 1 “Robber” works the same, except there are only four rushers and, along with the deep middle safety, another defender comes down to an intermediate level to read the QB’s eyes and “rob” any pass routes over the middle, like curls, in routes, and crossing routes. “Robber” is the most popular term for this technique but Saban’s is “Rat.” (I was always partial to Homer Smith’s term, “floaters,” which is the most descriptive.) There’s nothing magic about this coverage; every NFL team and most BCS college teams use it. Indeed, despite all the bluster about the Indianapolis Colts being a “Cover 2 team,” on first and second down you see lots of Cover 1 and Cover 1 robber from them, except they use their strong safety, Bob Sanders, as the “floater.” The key is for the floater to be able to read run, screen, or pass, and to use his eyes to get to the receiver and the ball. It’s particularly effective nowadays with the increased use of spread formations which most offenses use to open up passing lanes over the middle. Floaters or rat players can stop these inside passes and make game-changing interceptions. Below are some diagrams, and I expect to see Saban use this coverage a lot this season. (As a final note, Cover 1 Robber is useful against spread offense teams with mobile QB’s because the floater’s job becomes to not only read the QB’s eyes on passing downs but also to watch him for scrambles and to simply mirror the him on run plays like the option and the zone read.)


Base Zone Blitz

I won’t say too much because I’ve written extensively on pass protection and the zone-blitz here. But Saban will go to the zone-blitz in some passing situations and also when he feels like he can use the blitz in a way to attack an expected run and still play zone behind it. For example, if a team likes to run off tackle to the TE side on a particular down and distance, he might call a blitz that attacks that area and the zone blitz lets him still play sound coverage behind it. And like most modern defenses, Saban’s most common coverage behind a zone-blitz is a 3-3 or three-deep and three-intermediate defense with five rushers. Cover two behind a zone blitz is often dangerous because of the added uncovered deep seams, but most defenses feel comfortable with the 3-3. Below is a good example of an overload zone-blitz Saban uses to the open side of a one-back formation.

The thing to remember is that for years, when a team blitzed it was playing either Cover 1 or Cover 0 man (or simply left holes in its zone), and quarterbacks were coached to throw the ball where the blitzer had come from. Nowadays, there’s a common perception that a zone-blitz works because a defensive linemen gets in the throwing lane – no. What the dropping defensive end in the diagram above does is allow the defense as a whole to stay in zone coverage, and further notice who is covering the area where the blitzers came from: the strong safety, who is usually an effective pass defender, certainly moreso than a defensive end. That is how zone-blitzes cause confusion.

Other Techniques - Cornerback Leverage and Pattern Reading

Finally, let’s discuss some coverage techniques. The first is that Saban likes to have his cornerbacks adjust their “leverage” on a receiver based on the receiver’s split from the tackle and sideline. The theory is that if the wide receiver has cut his split down he has done one of two things: (a) given himself more room to run an out breaking route, or (b) cheated in to run a crossing or deep in-breaking route. So if the receiver cheats his split in, Saban has his cornerbacks align outside the receiver to defend the out-breaking route, because if he runs the in-breaking route the corner has help from the linebackers and safeties. Similarly, if the receiver lines up very wide (bottom of the numbers, let’s say), he has given himself room to run an in-breaking route like a slant. So the cornerback will align inside the receiver to take that route away and on the belief that an out-cut from that wide will be very difficult for the quarterback. To coach this Saban uses a “divider” line where they believe the receiver’s tendencies change to reflect one of the above two strategies. Nevertheless, the defensive back still must defend the route the receiver actually runs and maintain proper technique, but this is an important starting point.

More significant, however, is that Saban heavily coaches up “pattern reading” within his zone drops. The two zone-dropping schools of thought are to teach “spot-drops” or “pattern-reading.” One can overemphasize the distinction, but generally spot-dropping is easier to teach and was the traditional approach. For example, if your outside linebacker is responsible for the weak-flat, he will take his read steps and, upon reading pass, will drop to a spot and then react to the QB’s eyes. A big advantage with spot-dropping is simply that it is easy to teach to, say, a run-stuffing inside linebacker who spends most of his time on run game pursuit and shedding blocks. But the weakness is that well coached receivers – who have enough time – can become excellent at settling in the “zone holes” between defenders. And, with good receivers and good QBs, offenses have become more and more adept and finding and exploiting these zone holes.

Pattern-reading, on the other hand, is much like a matchup-zone in basketball. Defenders are responsible for zones but they basically play man on the receivers who come into their zones. Moreover, pattern-read teams begin by immediately coaching their defenders on how to recognize popular pass combinations (and indeed, the very concept of pass-combinations themselves), and each week zero in on the 5-15 most common pass concepts they will see from that opponent. When done correctly, pattern-reading defenders know exactly how to cover receivers in their zones and seamlessly (in a quite literal sense) pass the receivers onto other defenders as they run their routes. One thing that distinguishes Saban is that he uses pattern-reading in almost all of his coverages, including the traditional Cover 3, whereas many coaches only let certain defenders pattern read or only use it with certain defenses like Cover 4. Sounds a lot like Belichick, no?

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