I mean, what kind of success did Brissett actually have? The first two touchdowns followed great field position after fumbled kickoff returns, so they got the ball at the 21 and 22. The third touchdown was just two runs by Blount. I grant the first touchdown was a nice run by Brissett, and he didn't throw any picks, but that kind of performance does not win most games. Against Miami, it was 21-0 when Brissett came in, and they were out scored 24-10 the rest of the way.
Brady won countless games on his own merits. Jimmy won one, but Brissett just managed to not lose. Seriously.
Also, I'm not a Pats fan. I would have happily had Tom Brady as my team's quarterback for most of the last 15 years (although as a Broncos fan, Peyton did give me a couple of nice years -- but 2002-2012, and beginning again this year, I would have loved to have Brady.)