Reuters

Jets coach Rex Ryan saved his job. His fraternal twin can’t say the same thing.

The Cowboys have fired defensive coordinator Rob Ryan, according to multiple reports.

Rob Ryan took the job in 2011, after being fired by the Browns.

Cowboys owner Jerry Jones has vowed that changes are coming to the franchise. He also has lamented the absence of fundamentals, like solid and basic tackling skills.

At the NFL level, Rob Ryan has worked for the Raiders, Patriots, and Cardinals. It’s possible that the Cowboys will look to replace Rob Ryan with Mike Pettine, who has served as Rex Ryan’s defensive coordinator since 2009.

There’s a chance that Rob Ryan will join the Jets’ coaching staff, but Rex didn’t hire Rob when he was available two years ago. Rex reportedly will be making Dennis Thurman the new defensive coordinator in New York.