All the NFL Coaches Fired, on the Chopping Block This Black Monday

John Fox is one of many former head coaches looking for new employment. David Banks / Getty

The NFL playoffs are set to kick off on Saturday, but for teams that didn't make the postseason, a new season got underway Monday. Dubbed "Black Monday," the day following the end of the NFL regular season is traditionally when a number of head coaches are fired—and this year is no different.

By early Monday afternoon, four coaches were fired and another retired, to go along with former Giants coach Ben McAdoo, who was fired in the middle of the season. This could be just the beginning, as some experts have predicted a record number of head coach openings going into the offseason.

Let's take a look at the former coaches who will have to look elsewhere next season:

Ben McAdoo (New York Giants)—McAdoo was fired following Week 13, with the Giants off to a 2-10 start and the team in dire straits. The week prior to his dismissal, McAdoo opted to bench Eli Manning—the team's franchise quarterback—and end his consecutive starts streak at 210. McAdoo was replaced by interim head coach Steve Spagnuolo, who was the team's defensive coordinator. Spagnuolo is expected to get an interview, but it is unlikely he will get the job.

Chuck Pagano (Indianapolis Colts)—In a move that came as a surprise to absolutely no one, the Colts fired Pagano after six seasons as the team's head coach. Pagano was diagnosed with cancer in 2012. He left the team for much of the season before leading the team in its final regular season game and into the postseason. He was a favorite with the players. Unfortunately, the team was unable to parlay its sentiments into success on the field, as the team finished with a 4-12 record and lost seven halftime leads.

John Fox (Chicago Bears)—The Bears fired Fox after a third losing season left him with a 14-34 record for the 2017-18 season. The team struggled on offense, though the defense kept the team in a number of games. The front office will likely look for a coach to develop quarterback Mitchell Trubisky as he heads into his second season in the league.

Jim Caldwell (Detroit Lions)—In a move that became highly likely after the Lions were eliminated from playoff contention in Week 16, Caldwell was let go after four seasons. During his tenure with the team, Caldwell took the Lions to the postseason twice, but failed to win a game either time, even with the highest-paid player in football, quarterback Matthew Stafford.

Jack Del Rio (Oakland Raiders)—In perhaps the most surprising firing thus far, the Raiders fired Del Rio less than a year after signing him to a four-year contract extension. The Raiders, who were picked by many as a Super Bowl contender coming into the 2017 season, underperformed. They went 6-10 this season, despite a full season from 2016 MVP contender quarterback Derek Carr. Look for Super Bowl winner Jon Gruden to be hired as the team's next head coach within a few days.

Bruce Arians (Arizona Cardinals)—Arians announced Monday that he was retiring, ending his tenure with the Cardinals after five seasons. In October, Arians refuted such a report, but clearly changed his mind. He leaves the team after compiling a 49-30-1 record.

An emotional Bruce Arians announces his retirement as head coach of the @AZCardinals.#BeRedSeeRed

— NFL (@NFL) January 1, 2018

These six men are unlikely to be the only former coaches without a job by week's end. Here is one more to keep an eye on:

Marvin Lewis (Cincinnati Bengals)—After 15 seasons leading the Bengals, Lewis's contract is up after 2017 and it is widely expected that he will not be retained, though a final decision was not expected Monday. The Bengals didn't make the postseason in each of the last two seasons and failed to win a playoff game during Lewis's 15-year tenure. However, the team has shown a steadfast commitment to Lewis, so it is impossible to rule out a return.