I've been wondering if having an "elite" stat-making QB is really that important. With the rules Goodell has put in place, it's easier than ever to play the poisition if you don't ask them to do too much.. Lately we've seen guys like Flacco, E. Manning (2), Roethlisberger (2), win SBs.
Common thread here is that they just manage the game. Get good line play, run the ball, take the easy throws, throw to guys who are wide open or mismatched so only the WR can make a play on it. Don't take high risk throws and don't turn the ball over in the playoffs. They also tend to have fast, if not particulary skilled WRs to go down the field to. They don't try to thow receivers open.
QBs who are asked to do more for their teams, we all know the names... win some, lose some but the scales don't seem to be tipped in their favor like you'd think. Obviously you aren't ever going to win long term with a Sanchez, Fitzpatrick, or Vick turning the ball over every other series and making high risk throws, but you also don't seem to need an elite QB either.