Right, because most quarterbacks come into the league and immediately dominate and put up winning records. Especially when they have as much talent around them as Losman does.
The Bills win and lose as a team, dummy. Every QB's performance is directly related to his blocking, his having receivers to get open, his having receivers who can catch the ball (ask Robert Royal), and having a running game.
The Bills have had poor blocking all year, one receiver who can get open and catch the ball, and a below-average running game. Not that I think you would ever acknowledge any of these things or explain why Brady Quinn would address them.