Teams could see that last year. If it were really that simple, the Pats wouldn't have gone 14-2 last year.
I guess the real question is why the OL has played so poorly in its last three playoff games.
During the blitz, someones open, but you can't see them if your staring at the pass rush. I have to think the serious knee injury has to have greatly increased Brady's fear quotient. Probably would for anyone.