It goes to show what we fans "think we know" when we read 100 mock drafts and listen to NFL "draft experts". We read a blurb on a guy at one site, and another, and another. Or we say we saw him play during the college season and "he's great" or "he didn't impress me".
We think we know these college players, when in reality we have NO CLUE. I fall into that trap myself, all the time. That's why I laugh when I read draft grades and opinions right after the draft.
I have never read any higher praises than of Robert Gallery OT Iowa. Even though Eli Manning was rated #1, Gallery for the most part had the highest grade of anyone with "can't miss" comments. Some team's "all-pro LT for the next dozen years"... yeah right.
The point is after all the research and hoopla, college football is not pro football and predicting the future is tough, no matter how good someone looks or how much hype he gets.