If you truly believe that on this team no one person is more significant than any other portion of the whole, I got some swamp land to sell you.
Belioli have a philosophy, and BB is a master of scheme. But how far do you think that carries them in this league if they didn't have the good fortune (and it was a lucky pick by their own admission) to draft the centerpiece of the whole puzzle that transcends units with the 199th pick of the 2000 draft. 'Cause I guarantee you the system wasn't going to win anything with a $100M statue at the helm. Even with a healthy Rodney Harrison on the field. From the day he first buckled his chinstrap to enter a game, Brady has been THE single most significant difference maker. Rodney btw is a close second, though we've won one without him (albeit with Malloy as the leader of the defense).
When Rodney went down in 2003 and the defense collapsed, his consolation on the sidelines was Ty Law reminding him it would all work out fine because we had over a minute left on the clock and Tom Brady to maneuver us into FG range. Ty knew this from experience. All of his teamates believe in him. He can't do it alone - no one can - but he does more with less and for less than any past or future HOF QB on the planet - and that allows Belioli to persue team building and Belichick to acquire the necessary talent to perform adequately within his schemes. How far they got last season is a testament not only to the scheme but the QB who facilitates it's operation.
Belichick has the luxury of not having to build a team around his QB because he has a QB who is able and willing to adapt to the weapons at his disposal. But confusing that with his not being as significant as say Manning is to Indy would be a mistake. Neither team as presently constructed wins a championship without them. The Pats likely do win more games in the process, because they are a better balanced team with a better overall defense. But at the end of the day, does that really matter?