Garrett: Kyle Kosier shift to help Tyron Smith

SAN ANTONIO --The Cowboys made a significant change to their offensive line Monday afternoon when they moved Kyle Kosier from left guard to right guard because of the back injury of Montrae Holland.

Moving to the right side allows Kosier a chance to help rookie right tackle Tyron Smith in pass protection.

"The initial thought is to address Montrae being out and Kyle [having] played the right side earlier in his career," Jason Garrett said Tuesday morning. "We think working him next to Tyron Smith can be helpful. Having a more veteran guy in there typically can help the younger player, really with the calls at the line of scrimmage. They happen quicker and they can get on the same page quicker before the play starts and hopefully you can see him play more decisively when the ball is snapped."

Garrett said the move isn't permanent. However, if David Arkin, who was moved from the right side to the left guard spot, can develop a chemistry with left tackle Doug Free, this move could be full-time.

Garret said Arkin does a nice job and "the jump for him is big, but it's big for everybody."

Holland, who missed the walkthrough session on Tuesday, most likely won't play in the Thursday night preseason opener vs. Denver. When the Cowboys released Leonard Davis due to salary cap reasons, there was a thought Holland would move in as the starter.

But his health has held him back, and now with him out the Cowboys have to make some changes along the line, including moving a rookie to one of the spots.