Do Cowboys changes involve Rob Ryan?

Jerry Jones created a firestorm on the radio, message boards, Twitter, Facebook, and wherever else people talk about the Cowboys these days, when he said change needs to happen.

Jones made these comments on Wednesday afternoon during a radio appearance on KRLD-FM. Most assume the change involve coach Jason Garrett, who also said he's open to change, especially when it comes to the play calling duties.

But could Jones have meant something about Rob Ryan, the defensive coordinator?

Ryan did a wonderful job in mixing and matching different players because of the numerous injuries he endured. Ryan lost starting nose tackle Jay Ratliff, and his backup, Josh Brent.

Ryan also missed his starting safety Barry Church, his two starting inside linebackers, Sean Lee and Bruce Carter and solid run stopping defensive end Kenyon Coleman.

Slot corner Orlando Scandrick was also lost.

Ryan and the rest of the coaching staff never used the injuries as an excuse. But it was clear, Ryan didn't have his best personnel for the majority of the season and with the season on the line, at Washington in the regular season finale, Ryan had his best pass rusher, DeMarcus Ware, play with one arm, which will need surgery soon to repair shoulder and elbow damage.

Jones said numerous teams have health issues and they're able to overcome them.

It seems Ryan's job status is secure, as it should be, but maybe Jones wants the defensive coordinator to make some changes to how he does things.