It's no secret that offensive line play has been the weak sauce in the last couple of big games for the Buckeyes (save for the Fiesta Bowl against Texas game where for the most part they played well).
While most were aware of Nic Siciliano's move into the QB coach position (with Joe Daniels going into an advisory role), Siciliano's replacement has been named and it could mean positive things for the growth of the line:
A potentially huge development has come about. Jim Tressel hired Keith Uecker. He is coming over from Wayne State. Uecker was a 4-year OL starter at Auburn before playing 10 years in the NFL. He has been an offensive line coach for 7 years. He is going to be the Offensive Quality Control Coach.
(Thanks to GA Buckeye for the heads-up on this one in the comments)