SAN ANTONIO --As the Cowboys enter the final stages of the first leg of training camp, there is concern about Andre Gurode's backup at center.

The depth chart, from what we've seen at practice, has Travis Bright the backup with Phil Costa on third team. Starting left guard Kyle Kosier has taken reps at center.

It appears the Cowboys are more comfortable with Kosier as the backup to Gurode than Bright. If that's the case, Kosier would be replaced at guard by Montrae Holland, who has missed practice this week with a hamstring problem.

Sunday's preseason game will give offensive line coach Hudson Houck some answers about his group.

"We're working on it," Houck said of the backup center. "With a backup, it's Kyle. We got to work him more."

When asked if Kosier would benefit by playing center during the preseason, Houck said, "We haven’t talked about it. It's probably a pretty good idea."