Brady is successful because he puts in the prep time and has a great set of coaches and smart players around him. His WR's run good routes, get open/into their patterns quickly, recognize the blitz and cut-off their routes, and catch the ball. I think this is why the Bills have shifted philosophy and started drafting smaller, faster, and quicker WR's. In addition, Brady's O-line gives him enough to during blitzes for him to spot a WR who has broken-off his pattern, and Weis would usually anticipate the blitz, have his O-line block down, and provide an outlet receiver as well. Basically it's a team effort, not a one-man one. If JP can get those things from his offense, he'll be successful.