How do I know? A few years ago when I did my JaMarcus analysis? I recommended he be given a life coach..follow him 24/7.
Then,the Raiders did.
The problem was,JaMarcus had no incentive to be a great QB. He had 40 million dollars and could both eat all he wanted and afford all the opiates he wanted. Probably why he fumbled so often..he was numbed.
But- The Raiders tried. I tried.
Also- not only is Carr pretty much average,I don't think he's bright. It might not matter..Terry Bradshaw,Bumgarner in the grand old game..still were good to great. Just saying.