When a qb swings wins in such a way, that is how you know he is a franchise qb.
Look at the likes of;
These qbs are only going to swing the win and loss category if they were lost by 1-3 games.
But if you look at;
I think it is safe to say each of these qbs swings games by 7-10 games. If any of those above qbs went down, their club is not going to win more than five games, and that to me is a significant sign of a franchise qb.