One day after coach Jason Garrett wouldn't say if he was going to continue calling the offensive plays, offensive line coach Bill Callahan repeated that stance on Thursday. In a news conference introducing the Dallas Cowboys coaches for the 2013 season, Callahan downplayed any potential changes within the structure of the offensive staff. "I checked my ego at the door a long time ago," said Callahan, who has called the offensive plays with the Oakland Raiders and the University of Nebraska, where he was a head coach. "It doesn't matter who calls the plays. We know what the play is going to be so there's no guessers, no surprises and I think the players can tell you that as well. If you're a good football team and you have an identity of what you're doing, they can tell you the play that's going to be called and featured in that particular down and distance, there's no mystery," he said. There seems to be a mystery regarding the playcaller, especially after team owner/general manager Jerry Jones wanted to make changes within the coaching staff by saying he wanted people uncomfortable. Jones said it would be Garrett's decision to decide if he didn't want to call the offensive plays anymore. Callahan said he embraces Jones' thoughts and he hasn't spoken to the owner regarding the play calling but, "I would be very happy to speak with him." The Cowboys had the seventh-best offense in the league yet there was some game mismanagement issues with Garrett and the running attack finished 31st overall. Each year, Garrett said he's delegated duties to other offensive coaches. However, after the 2012 season, Garrett said he expected the status quo to remain in terms of calling the plays.