Should Sean McDermott continue to handle defensive play-calling duties for the Buffalo Bills in 2025? It’s one of the most talked-about topics among Bills fans and insiders as the franchise looks to push past recent playoff disappointments. McDermott has long been regarded as one of the league’s sharpest defensive minds, but as the seasons progress, the question is whether wearing both the head coach and defensive coordinator hats is helping or hindering the team’s growth.
Supporters of McDermott’s approach highlight his long-standing success on defense. Since his arrival in Buffalo, the Bills have consistently fielded one of the NFL’s toughest defensive units—disciplined, physical, and often dominant against high-powered offenses. His ability to adjust on the fly, disguise coverages, and maximize the strengths of his players has built a culture of accountability and intensity. For many, stripping McDermott of play-calling responsibilities would be a risky move that could disrupt that foundation.
Yet, critics make a compelling counterargument. They point out that McDermott’s attention to the defense sometimes overshadows his duties as head coach, especially during crucial game situations. Time management issues, conservative fourth-down calls, and a lack of offensive rhythm have often surfaced when the Bills needed a more balanced, big-picture approach. By appointing a trusted defensive coordinator, McDermott could focus on overall team execution and in-game decision-making—areas that may benefit from his undivided attention.
Some also believe a new voice on defense could help the unit evolve. As offenses across the NFL continue to innovate, having a coordinator who brings fresh tactics and perspectives could keep the Bills from becoming predictable. McDermott’s system has worked well, but at times it’s shown vulnerability against mobile quarterbacks and explosive passing attacks. A coordinator with modern schematic ideas could help close those gaps while allowing McDermott to step into a broader leadership role.
Ultimately, this debate comes down to identity versus evolution. Keeping McDermott as the defensive play-caller preserves continuity and the mindset that has defined Buffalo’s success under his leadership. But turning those duties over to a new coordinator could unlock the next level of growth the Bills need to finally reach a Super Bowl. The 2025 season might prove to be the defining year in determining whether McDermott’s dual role continues—or if a fresh approach is the spark this team needs.