He turned down G5 coaching offers because it's not the best way up the ladder anymore, and he never became an OC or DC, so he could move around and collect mentors in great coaches like Fulmore, Croom, Spurrier, his father, Smart, and Riley. If he went the conventional route, he'd have to develop his playbook, grow his reputation fro running an offense or defense, and wouldn't have had the chances to coach under so many greats as he did by just being a great ST, RC and position coach. In fact, I heard all the way back in 2011 on cockytalk from his who knew him when he was here before was that was his goal and thinking the whole time.