There is room for improvement on all three.
Claeys: I've generally been pretty pleased, especially this year at the defense's ability to keep us in games. Sometimes, I think he gets too conservative with long yardage situations, and this always scares me. Then, on the last play against Syracuse, I thought the 8-man blitz was too aggressive. I think he should focus on rushing more than 3 but less than 8 in those situations. 4, 5, 6, or 7 would all be good with me, and provide him enough options to keep defenses on their toes.
Limegrover: Sometimes I think his playcalling is too vanilla and he leans too heavily on Claeys keeping him in the game with a chance to pull one out late. Sometimes it works when our defense plays as well as it did this season, but I am worried about what happens if our defense has a down year and we need the offense to go out their and win one against a team that is not as sieve-like on defense as Indiana. All that said, his playcalling seemed to be good enough this year that, if not for bad drops by receivers and quarterbacks missing some throws that high school quarterbacks could make, we could have won some really big games. My biggest objection is his inability to run a 2-minute offense. I still can't believe that we ran out of time on a drive to end a half where we started with four and a half minutes left and 2 timeouts.
Kill: Before his move to the box, I felt like he sometimes let emotion control some big decisions. For example, it seemed like he was more likely to run a fake or go for it on fourth down in situations where he felt like we "should" have had a first down (either following a non-call on the defense for pass interference or a bad drop). Can't argue with results though. 8 wins>6 wins>3 wins.