I think this would be hard to track, unless you know every player that is drafted for every team. I think you could keep track if it were your team. And as far as a 6th round being a star later on in his career, I think you'd have to start that player from his rookie season on and do every training camp you can with him, cause normally I never see a 6th round have an overall above 56, and that's pushing it. I love the idea though, and it happens alot in the real NFL!