Ohio State was on top of the college football world just days ago, celebrating a national title in Atlanta. The Buckeyes' defense was dominant all season, allowing just 12.9 points

Ohio State was handed a big task right after their National Championship win over Notre Dame. The Buckeyes were hit with the reality that DC Jim Knowles would not be sticking around any longer. Following the season,

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.