But to seriously respond to this. Take a perfect DC who knows exactly when he needs to be aggressive to beat an offense:
- this DC will not do much with an outmatched defense because he knows none of his players can execute anything beyond simple and the offense will exploit any openings he creates
- this DC will use aggression and complexity to cover up his defensive weaknesses with strengths when his defense has both, relative to the offense's weaknesses and strengths
- this DC will not do anything to compromise the soundness of his defense when he knows his players can defend everything the opposing offense can throw at them
And, like, we can look at Tech, Toledo, Texas, Mizzou, SMU from this year and see that the good defenses tend to be the most simple. That doesn't mean necessarily that Oklahoma/Michigan don't exist, either. And we just know from advanced stats guys that blitz rate and coverage diversity tend to increase a defense's EPA.