Explosive NFL Insider Bombshell: The Shocking Truth Behind Sean McDermott’s Firing Finally Exposed

This article was originally published on Total Pro Sports.

More information has come to light regarding the Buffalo Bills’ stunning decision to fire beloved head coach Sean McDermott.

On Monday, the Bills fired Sean McDermott after nine seasons at the helm. The move came less than 24 hours after the Bills fell 33-30 to the top-seeded Denver Broncos in the AFC Divisional Round.

In another surprise, the Bills announced that GM Brandon Beane was promoted to president of football operations. Clearly, Beane managed to win a power struggle over the beloved head coach who turned a long-suffering franchise into a juggernaut.

According to new reports, Sean McDermott was openly critical of the roster Beane assembled. That didn’t sit well with the front office or owner Terry Pegula, reports Vic Carucci of WGRZ:

“I’m told that during a meeting held five weeks ago between McDermott, Beane and Pegula, the coach pointed out what the roster lacked to win a Super Bowl. I don’t know the specifics McDermott mentioned, but I’m told neither Beane nor Pegula was pleased with McDermott’s assessment.”

NFL Network’s Ian Rapoport said that the decision to let go of McDermott had been coming for “weeks.” Rapoport added that McDermott “had some questions about how much talent the Bills had.” Ultimately, Buffalo decided it needed a new leader.

From The Insiders on @NFLNetwork: The #Bills moved on from coach Sean McDermott today because simply, they wanted a new leader. pic.twitter.com/y8QkjIAN6v

— Ian Rapoport (@RapSheet) January 20, 2026

McDermott went 98-50-0 over his nine seasons in Buffalo. They made the postseason eight times, including each of the last seven years.

Bills May Regret Firing Sean McDermott

While some fed-up Bills fans will support the change at head coach, it’s evident that Beane’s roster construction has been a bigger issue than McDermott’s coaching.

You won’t find many coaches who can do what McDermott did in Buffalo. Beane didn’t find a suitable replacement for Stefon Diggs. It took him five years to find a capable 1,000-yard rusher (James Cook) to help Josh Allen.

Beane didn’t make a single blockbuster move at the trade deadline. His drafting has been terrible since 2020. And yet, with minimal star power at his side, McDermott kept Buffalo in Super Bowl contention.

We could very well look back on this in five years and call McDermott’s firing one of the worst moves in Bills history.