Dustin Vaughan comfortable in offense

Whenever you see a player from a small school such as West Texas A&M get an opportunity, you always wonder whether the game is too big for him.

Would Dustin Vaughan be overwhelmed by the atmosphere? The paid attendance of 57,228 in San Diego was easily among the biggest crowds that had ever seen the Corpus Christi, Texas, native play.

Then you wonder if the competition would overwhelm him. Vaughan, who had a record-setting college career, is no longer just a YouTube sensation known for the funny scouting combine spoof he made. He's an undrafted free agent with a legitimate opportunity to make an NFL roster.

Vaughan, who played the fourth quarter of the Dallas Cowboys' 27-7 preseason loss to the San Diego Chargers on Thursday, completed 7 of 14 passes for 80 yards against San Diego. The 6-foot-5, 233-pound Vaughan moved well in the pocket and led the third string on a nice fourth-quarter drive that ended when he was sacked on fourth down at the San Diego 15.

"I should've thrown the ball up and given one of my guys a chance to catch it," he said. "I talked to Tony (Romo) and coach (Scott) Linehan about it after I came out of the game.

"You're trying to go through your progression, but you don't have a lot of time. You think you know what's going to be there and when it's not, you try to create more time. It's something I'll learn with experience."

Vaughan will create a dilemma for Cowboys, who would love to stash him on the practice squad. To do so, they must release him and expose him to other teams.

Quarterbacks are so hard to find that if he has a good preseason, he'll get snapped up. This might be the year the Cowboys keep three quarterbacks on the roster.

"For his first action, I was impressed by how he moved around," Garrett said. "Sometimes as a big guy with a strong arm, you're concerned about his ability to move his feet and be spontaneous when something breaks down.

"But we saw evidence of him climbing up in the pocket and getting out of the pocket. I thought he made some good, quick decisions out in space."