The first NFL coach firing occurred on Monday, with the Titans letting go of Brian Callahan, who had a 4-17 record with the team.
The Titans, averaging 13.8 points per game, were likely due for a change, especially with rookie quarterback Cam Ward at the helm.
The loser of Sunday's Dolphins vs. Browns game could be the next coach to face unemployment.
Author's summary: NFL coach firings begin with Titans.