Rhule coached OL under Coughlin, so is he truly just a college coach?
I wonder if the college/pro thing is maybe more about whether they have pro experience or not, whether as a coach or player. Maybe just my impression but I get the feeling if a coach has pro experience, particularly as a player, he can make the transition easier than a college only coach. That said, Petitbon, Spurrier and Zorn all had pro playing experience, so maybe I'm way off base!