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May 032014
 

Aggressive defenses with multiple fronts and complex blitz schemes create problems for offenses due to their multiplicity and unpredictability. These defenses are high risk, high reward, and high difficulty. They require skillful play calling, as “choosing wrong” in terms of pressure leaves the defense susceptible to huge plays. Sound, simple defenses – while lacking the same attacking and confusion creating abilities – are not as susceptible to such breakdowns. In other words, aggressive defenses are “boom or bust,” and too much complication can lead to breakdowns at inopportune times.

Such was the case during the 2012 divisional playoff game between the San Francisco 49ers and the New Orleans Saints. With 2:18 left in the game, the 49ers trailed 23-24, facing a 3rd and 7 at the 27 yard line. They came to the line with Frank Gore as the lone back, and immediately shifted to an empty formation, with a tight end and two receivers to the right, and two receivers to the left.

The Saints were an aggressive, blitzing team under coordinator Gregg Williams. This style helped lead them to a Super Bowl title in 2009, a year in which they were second in the league with 35 defensive takeaways. 2009 showed the “boom” of the defense, while the Saints were about to experience the “bust” in San Francisco.

The dangers of an overcomplicated defense 1

Above, note the Saints alignment. It is clear that they have called a blitz in an obvious passing situation in order to put pressure on Smith. It is no mystery where the blitz is coming from. There are FIVE defenders near the line of scrimmage between right tackle Anthony Davis and Frank Gore in the slot. While it isn’t clear which of the five will rush the passer – such is the benefit of the aggressive defense – almost half of the defense is concentrated near the line of scrimmage in an area covering not more than ten yards. Not surprisingly, this leaves other areas of the field open to exploit.
We also see wide receiver Kyle Williams in motion. Cornerback Patrick Robinson follows him to the inside. Herein lies the most interesting aspect of the play. As the play unfolds, Robinson continues running towards the center of the field – even as the ball is being run in the opposite direction. He will run himself to the opposite hash as Alex Smith runs down the sideline for a touchdown. Nothing better illustrates the problem with an overcomplicated defense. Because it requires players to execute so many different schemes and coverages over the course of the game, they must devote brain power to performing many different assignments throughout the game. This means that they often cannot play without thinking, which causes them to lose sight of what is important – the ball. Such is the case here, as Robinson runs in a direct path away from the ball.

The dangers of an overcomplicated defense 2

There is no misdirection as the play unfolds, above. Kyle Williams cracks the defensive end – a staple play from Pop Warner on up. Left tackle Joe Staley pulls to lead the play. Notice the five defenders to the right of the formation that we noted before the snap. They are wasted from the snap of the ball, with no chance to make a play. Cornerback Robinson is well on his way to the opposite hash. A simple quarterback sweep, and eight Saints are on the wrong side of the field. Of the remaining three, two are on the hash being cracked to the inside, and the third is Robinson sprinting in the wrong direction. The 49ers have almost half the field at their disposal, with Joe Staley leading the play and no one in sight for him to block.

The dangers of an overcomplicated defense 3

Above, we see Robinson on the hash, and the remainder of the Saints in pursuit.

The dangers of an overcomplicated defense 4

Joe Staley’s cut block seals the play.

Defensive coordinators must balance the benefits of aggressiveness and unpredictability with the necessity for execution. Many multiple, attacking defenses have been successful and will continue to find success, but coaches must ensure that the players are not so assignment driven that they lose sight of what is most important: stopping the ball. As the Saints showed against the 49ers, this issue exists even at the highest level of play. While it is easy to blame a player for an assignment mistake, a coach must also look to himself, and ask whether he has added more than his players can handle. Even if a player botches a seemingly “basic” defensive (i.e. a safety not covering his deep half of the field in cover 2), the coordinator must ask if this is a manifestation of the player’s inability to play without thinking as a result of overcomplexity. The danger of overcomplexity isn’t only seen in major plays of the game; often, it is in the moments of tentativeness that add up throughout the course of a game to act as an invisible sabotage to playing aggressive, winning defense.