Not necessarily, just won a respectable amount of games, got to the playoffs more times than not. One you could still trust to win the Super Bowl if you had to.
The thread title is kind of a joke, but serious question. Two questions really. Currently, and of all time, which QB was the one that isn't/wasn't stellar, but very little mistakes, and is/was good enough to get the job done.
Nope. We had one epic game against each other about a month ago. First time all year my buddies and I actually got together at a bar for a Sabres game.