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's Jim Knowles is finalizing a 3-year deal with Penn State to become the highest-paid defensive coordinator in college football, sources told ESPN.