Duffner has 39 years of coaching experience, including Shoes Canada Free Returns the past Wholesale China Jerseys 17 seasons as Cheap Air Max 720 UK an NFL assistant. He was also a linebackers coach for the Green Bay Packers Hockey Jerseys From China and Cincinnati Bengals.
Duffner was head coach at Maryland in 1992-96, and at Holy Yeezy Boost 350 Cheap Real Cross in 1986-91.