Sean McDermott was with the Buffalo Bills for nine seasons as their head coach, from 2017 until he was fired in January 2026.

Quick Scoop: McDermott’s Time With the Bills

  • Sean McDermott was hired as the Buffalo Bills’ head coach in January 2017.
  • He remained in that role through the 2025 season and was dismissed on January 19, 2026, giving him a nine-year tenure.
  • Across those nine seasons, he turned the Bills into consistent playoff contenders but never reached the Super Bowl, which ultimately colored the narrative around his exit.

TL;DR: McDermott was with the Bills for about nine years (2017–January 2026) as head coach.

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