I am not typically a conspiracy theorist, but there is absolutely no doubt in my mind that Bill Polian's insistence on "reinforcement" of the rules regarding defensive PI/defensive holding was a result of the Patriots treatment of the Colt's receivers in 2003. I believe that the NFL tightened up that aspect of officiating because of Polian's influence and that Peyton Manning was the biggest beneficiary of those "adjustments" and still is to this day. With that said, I agree that the officials still "let them play", so to speak, during the playoffs. The relaxation of the rules regarding those types of calls was especially vivid during last year's playoffs, by my observation.