I read an article at Philadelphia Eagles blog site Bleeding Green Nation, and the article "Age and the OL - Why the 2010 Cowboys could be all sizzle, no steak" lists the individual ages for the projected starting offensive lineman in the league and where the Cowboys rank in comparison to the rest of NFL. The writer states Cowboys fans should be concerned that the o-line wont hold up over the long haul. Heres the link http://www.bleedinggreennation.com/2010/5/2/1454582/age-and-the-ol-why-the-2010