More changes are coming to Ohio State’s coaching staff.

Co-defensive coordinator Alex Grinch is leaving Ohio State to become the defensive coordinator at Oklahoma.

He leaves the Buckeyes after just one season after joining Greg Schiano as co-defensive coordinator as well as working with the safety positions.

During the 2018 season, Ohio State gave up 403.4 yards per game (71st in the nation) which is the worst mark in the program’s history. They also allowed 25.5 points per game (50th in the nation).

He will try to get the Sooners defense on track which was one of the worst in the nation.

They gave up 453.8 yards per game (114th in the nation) and 33.3 points per game (101st in the nation).

Last Saturday in the Orange Bowl, the defense surrendered 45 points and 528 yards to Alabama in the Crimson Tide’s 45-34 win.

The Buckeyes have already made some staff changes under Ryan Day who officially took over on Wednesday after the team’s victory in the Rose Bowl.

Mike Yurcich left Oklahoma State to become Ohio State’s passing game coordinator and quarterbacks coach and Michigan’s defensive assistant Al Washington is rumored to be joining the defensive staff.

It’s unclear if they’ll replace Grinch or just let Schiano become the full-time coordinator although there has been rumors that he may be replaced on the staff.