DJ Mangas was elevated to the position of offensive quality control coach by the Buffalo Bills, marking his official promotion within the coaching staff. Mangas became a member of Buffalo’s coaching staff during the team’s bye week in the 2023 NFL season, not long after Joe Brady was elevated to the position of interim offensive coordinator.
As Brady filled in as interim offensive coordinator and there being no official quarterbacks coach, the team decided to add Mangas as an offensive assistant. Although there was no formal title assigned, Mangas had the opportunity to become an unofficial member of the Bills coaching staff. DJ Mangas is currently reaping the benefits of that decision.
Mangas was the offensive coordinator and tight ends coach for the University at Buffalo football program prior to joining the Bills in the previous season.
Mangas and Joe Brady have a history together, having most recently collaborated on the LSU football team’s 2019 national championship campaign (Mangas as offensive analyst and Brady as passing game coordinator). However, they have been together since their playing days at William & Mary (W&M) in 2008–2011. Mangas was a walk-on who filled in as the Tribe’s backup quarterback while playing wide receiver at W&M.
Over his twelve years as a coach, DJ Mangas has coached mostly at the collegiate level. Mangas started out as the quarterbacks coach at Hampden-Sydney in 2012 and moved on to teach the running backs for Georgetown in 2013. Mangas returned to William & Mary in 2014 to take on the role of running backs coach for the Tribe. Mangas was promoted to offensive coordinator and quarterbacks coach at W&M in 2017–18.
Mangas departed in 2019 to work as an offensive analyst for LSU, and he made his NFL debut as a coaching assistant in 2020 with the Carolina Panthers. Mangas would return to LSU for the 2021 college football season to serve as the passing game coordinator. Mangas then made his only professional move to the defensive end when he joined the UCF Knights football program in 2022 as a defensive analyst.
Mangas arrived in Buffalo, New York, in 2023, when he joined the University at Buffalo Bulls football team as the tight ends coach and offensive coordinator. Mangas joined One Bills Drive after the Bulls season, which finally resulted in his elevation to full-time coach of the Buffalo Bills starting with the 2024 NFL season.
