From ProFootballTalk: Over the weekend, ESPN’s Chris Mortensen reported that Cowboys owner Jerry Jones is pushing coach Jason Garrett to give up his play-calling duties. The process continues. Per a league source, the Cowboys are quietly looking for a new offensive coordinator. Currently, Bill Callahan serves as both the offensive coordinator and the offensive line coach. A new offensive coordinator presumably would call the plays instead of Garrett. But Garrett, we’re told, is resisting the move. And if it happens, he wants someone who has no head-coaching experience.