Marcus Vick seems to be taking his place in a long line of early self-destructors. Some athletes who do everything they can to inhibit their own careers manage to bounce back -- often because their incredible talent ensures they'll get plenty of second, third and fourth chances. Others? Not so fortunate. Will Vick the Younger bounce back? Part of it depends on the outcome of his current case, of course. But part of it will just be good old mojo. Let's have a look at some priors.