SOME PEOPLE SAY that the overriding symbol, or characteristic, of the Eagles' defense this last decade has been the blitz. There is truth there, for sure. There is something else, though, more subtle but maybe more telling. It is that the defensive front four comes at you in waves, eight players a game, mixed and matched, shuffled and reshuffled, changing sometimes like hockey lines.
There is no predicting from week to week, no less down to down. It really might be their most distinctive element, this multiplicity of forces. And in all of the talk about how last season played out for the Eagles - maddening until Thanksgiving, then a steamroller - and how the offense and quarterback Donovan McNabb finally found themselves, it should be mentioned somewhere that the Eagles had better pressure on opposing quarterbacks down the stretch and in the playoffs, too - a lot better.