Whitt was hired as a student assistant for the Tigers after graduation. He worked as wide receivers coach at The Citadel in 2002 before joining Louisville the following year as a cornerbacks coach and recruiting coordinator under head coach Bobby Petrino. In 2007, Whitt followed Petrino when he was hired as head coach of the NFL's Atlanta Falcons, working as an assistant defensive backs coach before joining the Green Bay Packers in 2008 as a defensive quality control coach.[1] He was promoted to cornerbacks coach in 2009. Under his coaching, Charles Woodson was named the 2009 Defensive Player of the Year.[2][3][4] He was fired following the 2018 season, which he spent as a defensive passing game coordinator.[5]
Whitt worked as the secondary coach and pass game coordinator for the Cleveland Browns in 2019 and Falcons in 2020.[6] Serving as secondary coach and pass game coordinator, Whitt helped the Browns finish seventh in the league in pass defense.[7] On January 9, 2020, the Atlanta Falcons hired Whitt as secondary coach.[7] On January 13, 2021, Whitt joined the Dallas Cowboys for the same role.[8] During his time with Dallas, he was credited with developing cornerbacks Trevon Diggs and DaRon Bland, with Diggs leading the NFL in interceptions in 2021 with 11 and Bland setting the single-season record for interceptions returned for a touchdown with five in 2023.[9] On February 5, 2024, Whitt was hired by the Washington Commanders as defensive coordinator under head coach Dan Quinn, who he had been working under since the Falcons in 2020.[10]