As with all great football TEAMS. The Quarterback will always get a larger share of the credit than he really ought to.
You want to talk about the heart of the team, that's Seau; the leadership, that's Vrabel and Bruschi; the genius, that's Belicheck. Moss for a 4th round pick and the signing of Welker (the perfect slot receiver for NEs system) sure makes life pretty easy for Brady, too. Brady is what he is, a very good football player who has just enough smarts and ability to not get in his teams way. As an extension of his coach on the field and ability to handle pressure situations, he's at the top. As an end all, be all, all world, one of the greatest QBs ever, you'll excuse me if I don't buy it.