Who was the last problem child QB to actually make it in the NFL? It seems like every QB with the million dollar arm, 10 cent head moniker fails pretty quickly.
Cam Newton is basically the only exception that comes to mind, and he was a freak athlete and also really seemed to more or less have his head on straight after the lap top incident as far as I can remember, so I don't know that he was fairly labeled a problem child even if he wasn't a model citizen. Michael Vick I guess is another one, who like Newton was just a freak of an athlete and also I don't think he was an idiot across the board. Jameis Winston has made it I guess although obviously he's underachieved. I guess Matt Leinart made it for a while also although he was more of an *** than an idioti I think. But for the most part it seems like it's pretty predictable who is going to flame out. If it's not a freak like a cam newton or vick, it's pretty much not going to work out, and even then it's a crap shoot (e.g. Manziel).