Early career Smith began his coaching career as a graduate assistant at the
University of Arkansas in 1991. He would then serve as a graduate assistant at the
University of Georgia from 1994 to 1995.
Georgia Southern In 1996, Smith was hired as the wide receivers coach at
Georgia Southern University.
Tulane In 1999, Smith was hired as the defensive line coach at
Tulane University.
Georgia Tech In 2004, Smith was hired as the defensive line coach at
Georgia Tech.
Buffalo Bills In 2010, Smith was hired by the
Buffalo Bills as their defensive line coach under head coach
Chan Gailey. During his time there, Smith is credited with helping with the emergence of
Kyle Williams. He was dismissed, along with the entire Bills coaching staff, on December 31, 2012.
Tennessee Titans In 2014, Smith was hired by the
Tennessee Titans as their defensive line coach under head coach
Ken Whisenhunt.
San Diego / Los Angeles Chargers In 2016, Smith was hired by the
San Diego Chargers as their defensive line coach under head coach
Mike McCoy. In 2017, Smith was retained by the
Los Angeles Chargers under head coach
Anthony Lynn. In 2022, Smith was promoted to outside linebackers coach under head coach
Brandon Staley. On December 15, 2023, Smith was named the interim head coach following the firing of head coach
Brandon Staley. On December 23, 2023, Smith made his head coaching debut against the
Buffalo Bills but the Chargers were defeated 22–24 although they surprised the Bills with a 10–0 and 22–21 lead with under a minute left.
Los Angeles Rams In 2024, Smith was hired by the
Los Angeles Rams as their defensive line coach. ==Head coaching record==