You contrast the two different approaches the defenses took last night. Blache took the approach of - we're going to hang back and make you work your way down the field. Classic bend but don't break. We don't think you can keep your patience and execute long drives and end them in scores. In Blache's defense, it's the same strategy that he has employed against the Giants in the three previous games against them, and while the Giant offense has been able to move the ball, they haven't lit up the scoreboard. With a competent offense, this approach could keep a game close. Of course, the Giants actually got TDs last night, instead of the FGs they had gotten before.
Now, contrast this approach with the one taken by the Giants on defense. They basically said, well, we're down in the secondary and won't be able to cover long. So, screw worrying about coverage, we're going balls out after the ball. Press coverage. Force quick throws into small windows. Drew Brees or Peyton Manning would have eaten this defense alive, quite possibly setting the single-game scoring record. But Jason Campbell running the Zorn offense? It's exactly the defense every team should play against it.
The Giants D played a boom or bust type game, while the Redskins went on the theory that the Giants wouldn't be able to execute well enough to put the game out of reach. Both can work, but I know the approach I'd rather take.