POTYMatt Leinart was a #1 pick....but chose to go back to USC...it went well, but he still dropped to 10 in the draft.
if a guy is projected to go top 3...he is a damned fool to stay in college. sure he is making a couple mil... but the rookie slot is more...and if he actually plays well...in three years he is going to get a 300 million extension that includes a one time check for about 80 million.
but yeah...go back to college, keep making your 2mil...and get your throwing shoulder crushed in a meaningless non conference game by some dude who is trying to get noticed by scouts. smart decision.