The Clemson Tigers shook the college football world this week with the announcement of their new defensive coordinator being hired from one of the best units in the country. Clemson made things official on Tuesday with former Indiana Hoosiers head coach and Penn State Nittany Lions defensive architect Tom Allen to take over the Tigers defense and replace the fired Wes Goodwin.

CLEMSON, S.C. — Head Coach Dabo Swinney and Clemson Football announced today that Clemson has hired Tom Allen as Defensive Coordinator. The hire was finalized Tuesday by the Clemson University Board of Trustees Compensation Committee.

After spending one season under head coach James Franklin as Penn State football's defensive coordinator, Tom Allen is leaving to join Dabo Swinney's staff for the same position. The move was first reported by CBS Sports' Matt Zenitz on Monday.