Dennis Thurman

Buffalo Bills defensive coordinator Dennis Thurman walks on the sidelines during the second half of a preseason NFL football game against the Pittsburgh Steelers on Saturday, Aug. 29, 2015, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

(Bill Wippert)

The Buffalo Bills released two coaches from Rex Ryan's coaching staff on Saturday.

Adam Caplan of ESPN reported that Buffalo released defensive coordinator Dennis Thurman and OL coach Aaron Kromer from their contracts.

With Leslie Frazier taking over as #Bills defensive coordinator, former DC Dennis Thurman was released from his contract. — Adam Caplan (@caplannfl) January 14, 2017

And with Juan Castillo taking over as OL coach with #Bills, former OL coach Aaron Kromer was released from his contract. — Adam Caplan (@caplannfl) January 14, 2017

As Caplan noted, the two coaches no longer had roles with the team as the Bills hired Leslie Frazier as their defensive coordinator and Juan Castillo as their offensive line coach.

Thurman was a part of Rex Ryan's coaching staff with the New York Jets and Bills. Besides the 2008 season, Thurman and Ryan had coached together since 2002.

Kromer joined Buffalo's coaching staff in 2015. He joined Buffalo after a two-year stint as the Chicago Bears' offensive coordinator. Kromer agreed to a two-deal deal with the Bills so his contract was set to expire with the team.

Kromer may not be out of work for long. Jason La Canfora reported on Saturday that Kromer could join the Rams coaching staff as offensive coordinator.

The only coach to officially be retained from Ryan's coaching staff to date is special teams coach Danny Crossman.