He didn't pick JR to go #4... he has JR as the #4 best player on his "Big Board"... Just a rating system, not a prediction on where the guy would be picked...
Gotta say that despite the lack of humility he has shown and he probably deserves what he is getting, it is a bit painful to watch Quinn as they keep interviewing him with the inevitable, "how do you feel NOW? That you are still not selected?". Man, that's just got to be tough and I don't wish that humiliation on anyone.