Jim Knowles landed at Penn State less than a week after helping Ohio State win the national championship. In those precious days following the College Football Playoff finale, the sought-after defensive coordinator had options from which to choose.

Jim Knowles' defense is not static and is certainly malleable to suggestions, but even a veteran coach has a breaking point with directives.  The coordinator reached his limit after three years at Ohio State,

New defensive coordinator Jim Knowles met the Penn State football media for the first time. Here's what we learned