The Tampa Bay Buccaneers reportedly informed defensive coordinator Leslie Frazier on Thursday that his option for the 2016 season would not be picked up.
Rick Stroud of the Tampa Bay Times confirmed the team's decision.
The Bucs are beginning to overhaul their coaching staff after announcing the dismissal of head coach Lovie Smith on Wednesday night. Stroud noted that defensive backs coach Gil Byrd, safeties coach Mikal Smith and defensive assistant Larry Marme also won't be retained.
Tampa Bay's defense finished 10th in the league in yards allowed but 26th in points allowed during the 2015 season. The numbers represented only minor progress after finishing 2014, Frazier's first season as the coordinator, 25th in both points and yards allowed.
That said, the team lacks impact players on that side of the ball outside of Lavonte David and Gerald McCoy. The secondary in particular needs upgrades after the team allowed opponents to convert 46 percent of their third-down attempts, which ranked 30th in the NFL.
Frazier previously spent four seasons as head coach of the Minnesota Vikings. He accumulated a 21-32-1 record with one trip to the playoffs before being let go after the 2013 season.
The 56-year-old coach has an extended defensive pedigree dating back to the late 1990s. Along with the Bucs and Vikings, he's also made stops with the Philadelphia Eagles, Cincinnati Bengals and Indianapolis Colts as part of the defensive staff. It's a resume that should help land him another job as either a coordinator or defensive assistant.
Meanwhile, the Bucs are now focused on completely rebuilding the coaching staff as they look for their first playoff berth since 2007.