The Ohio State football team had some issues early in Ryan Day's head coaching tenure, finding the right defensive coordinator. Day was having some problems making the right hire. That came to a head when the Buckeyes had Kerry Coombs as the defensive coordinator.
Despite him being a great man and a solid recruiter, the defense was not playing well under his leadership. In 2021, Coombs was demoted, and Matt Barnes took over the defensive play-calling. It didn't make things much better, as Ohio State still had a horrible defensive team.
At the end of the season, both Coombs and Barnes moved on.