In 1995, he joined new head coach Tommy Tuberville's staff at Ole Miss to coach the secondary. Four seasons later when Tuberville took the head coaching position at Auburn, Lovett followed him to the school, where he was named the defensive coordinator. Tuberville fired Lovett following the 2001 season. Lovett was hired by Tommy Bowden to serve as the defensive coordinator at Clemson from 2002–04, where he helped develop one of the ACC's top defenses. In 2004, Clemson was 11th in the nation in pass defense efficiency (103.4) and 26th in total defense (327.3 yds/g). In 2003, his defense allowed just 19.2 points per game as Clemson finished the year with nine wins and a top 25 national ranking. Lovett served as the defensive coordinator at Bowling Green from 2005-06. In addition to coordinating the defense at Bowling Green, Lovett coached linebackers in 2005 and defensive backs in 2006. In his first year with the Falcons, Lovett's defense ranked 20th in the country in turnover margin. Lovett spent the 2007 and 2008 seasons as the special teams coordinator and a defensive assistant at North Carolina, where the kickoff coverage unit ranked among the nation's top 15 and the Tar Heels blocked six kicks in 2008. He coached the NCAA all-time leader in combined kick return yards in Brandon Tate, who also established the ACC career mark for kickoff return yards. On February 12, 2009, Lovett was hired by coach Randy Shannon as the new defensive coordinator for the Miami Hurricanes. He served at the position for two seasons until being let go with the rest of the coaching staff following the firing of Randy Shannon at the end of the 2010 season. Lovett was hired by his former employer at Auburn, Tommy Tuberville, to serve as the Defensive backs coach for the Texas Tech Red Raiders. Following head coach Tommy Tuberville's departure to Cincinnati, Lovett remained a member of the Texas Tech staff through the 2012 Meineke Car Care Bowl of Texas. Following the game, it was announced on January 4, 2013 that Lovett would be following Tuberville to Cincinnati to accept the defensive backs coach position. On February 8, 2013, Lovett was named the defensive backs coach for the Philadelphia Eagles. On January 19, 2015, it was announced that Lovett would move to a job in the Eagles pro personnel department. Lovett was named the cornerbacks coach for the California Golden Bears football team on July 27, 2015. He was released in January 2017 following Sonny Dykes' dismissal as head coach.