Early Coaching Career Sumrall began his coaching career as a graduate assistant at his alma mater,
Kentucky, after medically retiring from football. After two years, he was hired by
San Diego where he coached under former Kentucky assistant
Ron Caragher. Sumrall then served as the co-defensive coordinator at
Tulane for three seasons before going to
Troy as their assistant head coach and special teams coordinator. Sumrall was named the linebackers coach at
Ole Miss in January 2018. He was also reported to be a finalist for the head coaching position at Troy in 2019 before
Chip Lindsey was hired. Sumrall returned to his alma mater Kentucky in 2019 as the program's inside linebackers coach. He was promoted to co-defensive coordinator in 2021.
Troy Trojans On December 2, 2021, Sumrall was hired as the 23rd head coach at
Troy University. In his first season at Troy, he guided the Trojans to a 12–2 record and an 18–12
Cure Bowl victory over the No. 23 ranked
UTSA Roadrunners. In Sumrall's second season as the head coach he would guide Troy to a 11–2 record and back to back
Sun Belt Conference Championships.
Tulane Green Wave On December 8, 2023, Sumrall was hired as the 42nd head coach at
Tulane. In Sumrall's two seasons with the Green Wave, he guided them to back-to-back
American Conference Championship Game appearances.
Florida Gators On November 30, 2025, it was reported that
Florida was finalizing a six-year deal to hire Sumrall as its next head coach. He is reported to have an annual salary of $7.5 million a year with incentives tied to the
College Football Playoff. Hours later, the University officially announced his hiring as the school's 31st head football coach. Sumrall coached Tulane's 2025 postseason game while also working to recruit and retain talent at Florida early in his tenure. ==Head coaching record==