Considering that the year Brady got injured and the Patriots went 11-5, it certainly was not all Tom Brady.
Also considering how little Brady would do in his early years (he went an entire super bowl run without a single TD pass), he was largely carried to early success. His one skill was that he didn't turn the ball over. He had an elite defense, one that turned out to know what was coming by immoral means.. but I digress.
If Brady were on NE this year, without all the players they were missing, the Pats would have gone 9-7 tops.
Obviously a fluke year. Matt castle who played that year on that team also took the chiefs to a 10 and six record his first year with the chiefs taking them to the playoffs. according to that logic,that chiefs coach back then is a good coach as well.

that was a fluke year for the pats same as that was also a fluke year for the chiefs.LOL
they had Randy Moss as well.Randy Moss is going to win you a lot of games.