Jim Knowles, the Penn State Nittany Lions' new defensive coordinator, introduces himself to players and coaches at a team meeting.

Penn State has received plenty of praise over the past few weeks for retaining talent. Its latest move, hiring one of the nation's best defensive coordinators, has people buzzing.

Knowles, a Philadelphia native with strong ties to the Northeast, transformed the Buckeyes' defense during an impressive three-year stint. Ohio State ranked top three in total defense each of the past two seasons and led the nation by holding opponents to 254.6 yards per game and 4.2 yards per play during a historic campaign.