Williams is still suspended indefinitely by the NFL for his role in the Bountygate scandal with the New Orleans Saints. He reportedly was a key part of a program that encouraged his players to injure opponents.
It is unclear if or when he'll be reinstated.
This move allows the team to start fresh with a new coordinator that can be active with the team.
Head coach Jeff Fisher decided not to name a replacement defensive coordinator for the 2012 season, and the results were solid. The unit ranked No. 14 in the league in both yards and points allowed.
While Williams has an impressive résumé as a defensive specialist, it is apparent that he was not needed on this squad.
The Rams also fired linebackers coach Blake Williams, Gregg's son. Jim Thomas of the St. Louis Post-Dispatch reported that one of the reasons for his dismissal was the fact that he did not get along with the rest of the staff.
Sources told Thomas that the younger Williams' ego "didn’t match his résumé and his blunt approach didn’t go over well."
This was also the first year that Blake Williams worked in the NFL without his father on the same staff.
Gregg Williams would ordinarily be a hot commodity for teams looking to upgrade on the defensive side of the football. However, all of the events over the past year will likely make it difficult for him to find a job even if he is allowed back into the league.
In the meantime, the improving Rams will continue moving forward without him.