He appeared to be the next great young QB and looking at his body of work you have to admit he shows more signs of being a bust than not so far. I even think kiper got burned with his projections of Haskins and is now gun shy to label anyone a for sure bust or for sure HoF'er.
To win and be a great QB you have to have talent, willingness to work your butt off both with studying and working out, but you also have to have a bit of luck. You mess any of those up and you end up out of the NFL.