His biggest short comings were hiring and leading a staff, which lead to disastrous player development (he also had to learn that recruits lie/flip, but he figured that out quickly). He hired a bunch of "names" while still working for the Pats. And when he went to replace those guys, he replaced them with more "names" (Tenuta) instead of considering cohesion and scheme. So he ended up, for example, with co-DCs with polar opposite schemes that openly fought in practice in '09. Not having to hire staff and instill a strength/conditioning program will help. He also didn't know the importance of forcing 18-20 year old to exercise, eat right, etc, so he didn't know what to ask for (compare: a dealbreaker for Kelly before he accepted was a training table, which is common but ND didn't have - guys were eating pizza twice a week during the season last year - imagine an OL trying to win in November on the Bum's diet). If he knew how to build a staff and lead them with 1 goal/message, the players could have developed. And he developed QBs quite well (Quinn and Clausen were solid/great college QBs that excelled in his system). If he has to hire the offensive staff, I guess he could struggle. But I think it's more likely that Muschamp runs that show and Weis just comes up with the overall plan and implements it while focusing on QB development. I think it'll end up being a solid fit for both. He loved the college coach life when things were going well and he's a stud recruiter. He's still the best or among the best pro-style OCs in all of football. Plus, his son, who wants to coach and was on the sidelines at ND, is going to enroll at Florida and I imagine be an assistant of some sort. He'll get more family time and focus on the things he likes/excels at. Florida gets a stud OC, a recruiting machine, and a standup guy (he's got a huge ego, no doubt, but he's not a slimy guy like Kiffen, for example).