I would seriously look at Chris Hampton

Hampton engineered a remarkable defensive turnaround during his two-year stint as Tulane’s defensive coordinator. The Green Wave jumped up 82 spots to No. 32 in the scoring defense (22.2 PPG) in 2022, and 55 spots up to No. 46 in total defense (360.4 YPG). The biggest improvement came in the passing defense, where Tulane went from No. 115 in 2020 prior to Hampton’s return to No. 37 in 2022 (208.1 YPG)