Clark developed over a dozen NFL offensive linemen in his career (including six O-line draft picks):
Cooper Hodges,
Larry Turner,
Derek Hardman,
Dennis Kelly,
Nick Mondek,
Jordan Roos,
Rick Schmeig,
Kevin Pamphile,
Colby Gossett,
Josh Kline,
Armani Taylor-Prioleau,
Ryan Neuzil, and
Beau Nunn.
Appalachian State Clark joined the Appalachian staff as offensive line coach in 2016 under head coach
Scott Satterfield, then becoming an assistant
head coach in 2019. In 2017, they led the Sun Belt in both rushing yards and fewest sacks, allowing only eight sacks (ranked second nationally) and averaging 223.6 rushing yards per game, ranking 22nd nationally. Appalachian State became the first
Sun Belt Conference program to have three offensive linemen named to the all-conference first team (
Colby Gossett,
Beau Nunn, Victor Johnson). The 2018 team was 14th nationally in rushing yards per game (240.3) and 20th nationally with only 18 sacks allowed. Quarterback
Justice Hansen was awarded the
Sun Belt Offensive Player of the Year. The following season Quarterback Zac Thomas was named Sun Belt Offensive Player of the Year. Upon the departure of
Eliah Drinkwitz for Missouri, Clark became the 22nd head coach in program history on December 13, 2019. Clark led the Mountaineers in their bowl game that year to a 31–17 victory over
UAB Blazers in the
New Orleans Bowl. Running back
Darrynton Evans was also named Sun Belt Offensive Player of the Year, with Appalachian State receiving the title for the third straight year. Clark's first full season as head coach of the Mountaineers was met with complications from the
COVID-19 pandemic, which caused many changes to schedules and football operations around the country. The team persevered and Clark finished 9–3 and led the team in the inaugural
Myrtle Beach Bowl and defeated the
North Texas Mean Green with a dominating 56–28 performance. In the 2021 season, Linebacker
D'Marco Jackson was named
Sun Belt Defensive Player of the Year and Quarterback
Chase Brice was named
Sun Belt Newcomer of the Year. In 2023, Quarterback
Joey Aguilar would also receive the Sun Belt Newcomer of the Year Award. On December 2, 2024, Clark was fired following a 5–6 season in 2024.
UCF After his exit from Appalachian State, Clark was hired by
Scott Frost to be the offensive line coach at the
University of Central Florida. The move was first reported by
Pete Thamel and later confirmed by the
Orlando Sentinel. Clark was one of Frost's first hires after he was selected to replace
Gus Malzahn at UCF. ==Personal life==