However, Knowles wasn’t in attendance. About an hour later, reports surfaced that Knowles is leaving Ohio State to serve as Penn State’s next defensive coordinator. The move leaves Day searching for a replacement. Here’s who he might consider as he enters his seventh season as the Buckeyes' head coach.

Ohio State has made Jim Knowles a contract extension offer that would make him the highest-paid defensive coordinator.

Ohio State football asked former defensive coordinator Jim Knowles to not show up to the Buckeyes championship celebration.