There always has to be someone at the bottom no matter what position, or sport. Some of the guys on the bottom are still at a stage in their careers where they can still climb out of that spot and end with a good name.
Not everyone can be as good a Tom Brady, Aaron Rodgers, or a Drew Brees, but you can still be a successful QB in this league without that. But these guys on this list just aren't having things go their way right now in their careers. Check out my list of who I believe are the 5 worst starting quarterbacks in the league this season.