I could see the 3 year rule possibly changing in the near future. Part of the reason it exists is to protect teams from drafting kids too early who aren't ready to be in the league which leads to them struggling and not being worth the enormous financial investment. When your top 5 picks busted, it really crippled the franchise from a cap perspective, not to mention the loss of the asset. But with tens of millions less being committed to some of these guys, you have more room for error and can be a bit more speculative. The other reason it exists is so the NFL can protect the NCAA, its free minor league system. If all of a sudden a bunch of QBs, RBs, and other skill players were leaving even earlier for the NFL, it would seriously impact the quality of college football as others have mentioned. Those guys not being around means worse ratings and fewer dollars. I'm saying this halfheartedly, but I wish there was a "wink wink" deal among the people in NFL offices where players could petition for early entry, and if they aren't a marketable star (read: offensive skill positions, becuase yes I don't think Clowney really fits that) the NFL waves them in. Guys like Clowney and maybe some interior linemen. When an Andrew Luck comes around, they make up some kind of bull#### excuse as to why he's not ready.