Jim Knowles, Penn State’s new defensive coordinator, was asked a lot of big-picture questions when he was introduced at a press conference on Tuesday, a little more than a week after he left Ohio State Why did he leave the Buckeyes after winning a national championship?

Penn State made a major coaching hire this month when it poached defensive coordinator Jim Knowles from the national champion Ohio State Buckeyes. Knowles, 59, spent two years in Columbus, and his defense played a major role in Ohio State winning its first national championship in a decade this