For right now, the Cowboys are announcing that Duffie is a defensive backs coach and it may not be exactly determined how the positions will be split. Current OSU assistant Van Malone, a former NFL starter at safety with the Detroit Lions, is fully capable of coaching cornerbacks too.
A native of Jefferson, Texas, Duffie has only been at Wake Forest for one season and prior to that was at Colorado State for four seasons where he coached corners and the entire secondary his final season. He has very good recruiting contacts and relationships in his native Texas and was the primary recruiter in Texas for Colorado State.
In his lone season at Wake Forest, the Demon Deacons led the Atlantic Coast Conference and ranked 25th nationally in turnover margin.
While in Fort Collins, Duffie was heavily involved in recruiting much of CSU's top talent, including Crockett Gillmore, an all-conference performer in his first season as a tight end in 2011; Weston Richburg, a 2010 freshman All-American, and Austin Gray, a 12-game starter at safety as a freshman in 2011.
In his first year at the reins of the Rams full secondary in 2011, Duffie was instrumental in helping CSU finish the regular season ranked 14th in the nation by allowing only 179.6 passing yards per game.
Duffie broke into coaching at UTEP, where he served as a graduate assistant coaching linebackers in 2000 and then safeties in 2001. He was elevated to his first full-time position coaching the Miners safeties from 2002-03 then served as UTEP's linebackers coach from 2004-06 and back to safeties in 2007.
During his time at UTEP, he coached nine all-conference athletes, the 2004 Western Athletic Conference Defensive Player of the Year in Robert Rodriguez and a second-round NFL draft choice in Thomas Howard. Howard went on to become an everyday starter for the Oakland Raiders and Cincinnati Bengals.
In addition to his role at UTEP, Duffie worked with the Detroit Lions in the summer of 2001 in a coaching fellowship.
An aggressive player in his playing days, Duffie had 202 tackles, six tackles for loss, a sacks, and three interceptions as a starter.
Duffie and his wife, Autumn, have two sons, Memphis and Manhattan. Duffie also has another son named Timias.