The NFL regular season wrapped up, but that just means plenty of teams are officially kicking off their offseason. And several of the struggling ones are beginning with massive changes up top, specifically at the head coach position.

It’s Black Monday in the NFL, which means it’s time for bad news for coaches across the league. The day after the end of the regular season has turned into a grim sort of holiday in the NFL, marking the day that many head coaches across the league are fired after bad seasons.

Black Monday is a sobering event in the NFL — coaches are fired, families will be uprooted, and changes are made throughout organizations across the league. However, these moves have a significant impact on teams across the NFL,