I could be wrong, but I believe Linehan was calling the shots in 2014. The Joneses forced Bill Callahan and Linehan on Garrett and took away his play-calling because he wasn't using the running game enough. I'm not sure what year they experimented with Romo essentially calling the plays, but it was not working well. That doesn't mean he didn't still have a lot of freedom, especially in the two-minute offense, but after they gave him free reign, it was noted how he would check to a pass play too often.