Garrett Riley

Biography

Garrett Riley, the former offensive coordinator at Clemson, TCU and SMU, joined the Mizzou staff in January of 2026 to coach the Tigers quarterbacks. His first season in Columbia he inherits a quarterback room that features transfers Austin Simmons and Nick Evers along with Matt Zollers who returns after making three starts as a true freshman and incoming true freshman Gavin Sidwar. Riley arrives in CoMo after serving as Clemson’s offensive coordinator and quarterback coach for the past three seasons, overseeing the development of QB Cade Klubnik. In 2025, Clemson ranked 22nd nationally throwing for 267.8 YPG. Klubnik threw 16 touchdowns and 2,943 this past season and 9,426 yards and 71 touchdowns during his three years with Riley. Riley produced one of the nation’s most balanced offenses in 2024 when Clemson tied for the national lead with six games reaching both 200 rushing yards and 200 passing yards. Clemson, who won the ACC and made the CFP, produced a 3,000-yard passer, 1,000-yard rusher and four 500-yard pass catchers in a season for the fourth time in school history. Klubnik threw 36 touchdowns against only six interceptions and 3,639 yards. A season earlier, Klubnik completed 290-of-454 passes in his first full season as a starter in 2023. Riley Joined Clemson from TCU, where he served as the team’s offensive coordinator/quarterbacks coach in 2022, helping lead the Horned Frogs to a 13-2 record, a Fiesta Bowl title and a berth in the College Football Playoff National