FILE - Green Bay Packers' defensive coordinator Mike Pettine addresses the media during a press conference in Green Bay, Wisc., in this Monday, Feb. 18, 2019, file photo. All four defensive coordinators who will be trying to shut down high-powered offenses in the NFL playoffs this weekend have been head coaches before, providing valuable experience in the conference championships. (AP Photo/Matt Ludtke, File)

FILE - Kansas City Chiefs defensive coordinator Steve Spagnuolo addresses the media during a news conference at Arrowhead Stadium in Kansas City, Mo., in this Thursday, Jan. 16, 2020, file photo. All four defensive coordinators who will be trying to shut down high-powered offenses in the NFL playoffs this weekend have been head coaches before, providing valuable experience in the conference championships. (AP Photo/Charlie Riedel, File)

FILE - This is a 2019 file photo showing Todd Bowles of the Tampa Bay Buccaneers NFL football team. All four defensive coordinators who will be trying to shut down high-powered offenses in the NFL playoffs this weekend have been head coaches before, providing valuable experience in the conference championships. (AP Photo/File)

Buffalo Bills Defensive Coordinator Leslie Frazier walks the field before an NFL divisional round football game against the Baltimore Ravens Saturday, Jan. 16, 2021, in Orchard Park, N.Y. All four defensive coordinators who will be trying to shut down high-powered offenses in the NFL playoffs this weekend have been head coaches before, providing valuable experience in the conference championships.(AP Photo/Adrian Kraus)