Jim Knowles was introduced as Penn State's defensive coordinator on Tuesday. Here's what he said about leaving Ohio State football.

The Buckeyes have already lost three major pieces to their coaching staff, and another of OSU's assistant coaches is being targeted by an SEC

Ohio State head football coach Ryan Day was the reason defensive coordinator Jim Knowles left for Penn State this offseason.

When you are a good team you are going to see coaching turnover and Ohio State is seeing that after the National Championship win over Notre Dame. Ryan Day has lost both coordinators Jim Knowles and Chip Kelly,