Oklahoma State University Athletics
Crill and O’Guin Join Cowboy Football Coaching Staff
December 23, 2025 | Cowboy Football
STILLWATER – Oklahoma State football coach Eric Morris continued building his coaching staff Tuesday, naming Cody Crill as offensive line coach and Mike O'Guin as assistant defensive line coach.
Crill worked under Morris as his offensive coordinator at Incarnate Word from 2018-21 and joined him again as the North Texas offensive line coach in 2025. O'Guin has experience working with OSU defensive coordinator Skyler Cassity, as they were both graduate assistants at Texas Tech in 2019.
A 22-year coaching veteran with experience as a head coach and offensive coordinator, Crill has held an offensive line coaching title for eight seasons.
He's worked with potent offenses throughout his career, including being part of a UNT offense in 2025 that leads the FBS in scoring offense, total offense and first downs and was among the top five in passing offense (second), pass efficiency (third) and more. His offensive line also paved the way for UNT running back Caleb Hawkins to lead the nation in scoring, total touchdowns and rushing touchdowns, and for UNT quarterback Drew Mestemaker to lead the FBS in passing yards and rank No. 2 in passing touchdowns.
O'Guin, who served as the defensive line coach at Texas State for the past three seasons, is a 15-year coaching veteran who has worked with defensive linemen throughout his career.
During his time at Texas State, he helped guide the Bobcats to three bowl games. In his first season there in 2023, O'Guin coached a defensive line that helped the Bobcats lead the nation in tackles for loss and rank among the top 10 in sacks. The unit nearly broke the overall program record for tackles for loss in a season with 110.0 and set the program's FBS record for most sacks in a season with 40.0.
O'Guin got his start in coaching as a student assistant at SMU, where a knee injury ended his playing career after one season with the Mustangs.
All university hires are pending completion of a background check.
Cody Crill Coaching History
2004-05: Angelo State, Defensive Ends
2005: Trinity Valley, Offensive/Defensive Line/Running Backs/Fullbacks
2006-08: Winston Salem State, Offensive Line
2009-14: Navarro College, Offensive Coordinator
2015-17: Navarro College, Head Coach
2018-21: Incarnate Word, Offensive Coordinator
2022-23: DC Defenders, Offensive Line
2024: Marshall, Offensive Line
2025: North Texas, Offensive Line
2026: Oklahoma State, Offensive Line
Mike O'Guin Coaching History
2011-13: SMU, Student Assistant Coach
2014: John Tyler High School (TX), Defensive Line
2015-16: Angleton High School (TX), Defensive Line
2017-18: North Shore High School (TX), Defensive Line
2019: Texas Tech, Graduate Assistant
2020: Notre Dame, Defensive Line Assistant
2021-22: Sam Houston, Defensive Line/Defensive Recruiting Coordinator
2023-25: Texas State, Defensive Line
2026: Oklahoma State, Assistant Defensive Line
Crill worked under Morris as his offensive coordinator at Incarnate Word from 2018-21 and joined him again as the North Texas offensive line coach in 2025. O'Guin has experience working with OSU defensive coordinator Skyler Cassity, as they were both graduate assistants at Texas Tech in 2019.
A 22-year coaching veteran with experience as a head coach and offensive coordinator, Crill has held an offensive line coaching title for eight seasons.
He's worked with potent offenses throughout his career, including being part of a UNT offense in 2025 that leads the FBS in scoring offense, total offense and first downs and was among the top five in passing offense (second), pass efficiency (third) and more. His offensive line also paved the way for UNT running back Caleb Hawkins to lead the nation in scoring, total touchdowns and rushing touchdowns, and for UNT quarterback Drew Mestemaker to lead the FBS in passing yards and rank No. 2 in passing touchdowns.
O'Guin, who served as the defensive line coach at Texas State for the past three seasons, is a 15-year coaching veteran who has worked with defensive linemen throughout his career.
During his time at Texas State, he helped guide the Bobcats to three bowl games. In his first season there in 2023, O'Guin coached a defensive line that helped the Bobcats lead the nation in tackles for loss and rank among the top 10 in sacks. The unit nearly broke the overall program record for tackles for loss in a season with 110.0 and set the program's FBS record for most sacks in a season with 40.0.
O'Guin got his start in coaching as a student assistant at SMU, where a knee injury ended his playing career after one season with the Mustangs.
All university hires are pending completion of a background check.
Cody Crill Coaching History
2004-05: Angelo State, Defensive Ends
2005: Trinity Valley, Offensive/Defensive Line/Running Backs/Fullbacks
2006-08: Winston Salem State, Offensive Line
2009-14: Navarro College, Offensive Coordinator
2015-17: Navarro College, Head Coach
2018-21: Incarnate Word, Offensive Coordinator
2022-23: DC Defenders, Offensive Line
2024: Marshall, Offensive Line
2025: North Texas, Offensive Line
2026: Oklahoma State, Offensive Line
Mike O'Guin Coaching History
2011-13: SMU, Student Assistant Coach
2014: John Tyler High School (TX), Defensive Line
2015-16: Angleton High School (TX), Defensive Line
2017-18: North Shore High School (TX), Defensive Line
2019: Texas Tech, Graduate Assistant
2020: Notre Dame, Defensive Line Assistant
2021-22: Sam Houston, Defensive Line/Defensive Recruiting Coordinator
2023-25: Texas State, Defensive Line
2026: Oklahoma State, Assistant Defensive Line
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