Penn State has hired Jim Knowles as defensive coordinator after he helped Ohio State win the national championship, according to multiple reports.

Penn State defensive coordinator Tom Allen has agreed to take the same position at Clemson, the school announced on Tuesday. Allen, who just finished his first season as Penn State's defensive coordinator and linebackers coach,

Penn State has officially lost its defensive coordinator. Tom Allen, after one just season with the Nittany Lions, was formally named Clemson’s new defensive coordinator on Tuesday afternoon.