The Buffalo Bills announced a flurry of coaching changes Tuesday headlined by Leslie Frazier's decision to take the upcoming season off.

The defensive coordinator expects to return to the sidelines next year, having held the role since 2017.

NFL Network reports that Frazier is "just taking a break."

CLICK HERE FOR MORE SPORTS COVERAGE ON FOXNEWS.COM

Leslie Frazier in 2023

Defensive coordinator Leslie Frazier of the Buffalo Bills prior to an AFC wild-card playoff game against the Miami Dolphins at Highmark Stadium Jan. 15, 2023, in Orchard Park, N.Y.  (Timothy T Ludwig/Getty Images)

Since Frazier arrived in Buffalo, the Bills have consistently had one of the NFL's top defenses. In the last six seasons, the Bills have allowed the third-fewest points per game in the NFL, and their 315 yards allowed per game is the best mark in football over that span.

Last season, Buffalo allowed 319.1 yards per game, sixth-lowest in the NFL, and its 17.9 points allowed was second-best in the league.

Leslie frazier

Buffalo Bills defensive coach Leslie Frazier walks the field before a game against the New York Jets at New Era Field Dec. 29, 2019, in Orchard Park, N.Y. (Timothy T Ludwig/Getty Images)

ESPN ANALYST TAKES OFFENSE TO DEION SANDERS' RECRUITING TACTICS: 'THIS S--- AIN'T FUNNY'

Frazier has recently said he wants to get another head coaching job, a gig he has not had since he was the Minnesota Vikings' head coach from 2010 to 2013.

The Bills won the AFC East but were eliminated from the playoffs in a 27-10 loss to the Cincinnati Bengals in the AFC divisional round.

Leslie Frazier at minicamp

Buffalo Bills defensive coordinator Leslie Frazier on the field during a minicamp June 16, 2021, in Orchard Park, N.Y.  (Timothy T Ludwig/Getty Images)

CLICK HERE TO GET THE FOX NEWS APP

A replacement for Frazier has not been named.