They cut right guard Kyle Kosier after the season , and opted not to re-sign Montrae Holland .
There will be changes for 2012 , as the Cowboys hired a new offensive line coach , Bill Callahan , and chose to jettison a number of veterans .
Cowboys cut right guard Kyle Kosier after the season , and opted not to re-sign Montrae Holland .
There will be changes for 2012 , as the Cowboys hired a new offensive line coach , Bill Callahan , and chose to jettison a number of veterans .