The Cowboys are almost certainly set to start Doug Free at left tackle next season but still could draft a left tackle, even with one of their higher picks. They also have Robert Brewster, who played left tackle in college, although he might be a better fit at left guard as Kyle Kosier's eventual replacement. Source: Pro Football Weekly
You can never have enough Offensive Linemen, but you have to address critical needs first with most, if not all, teams out there. What are the Cowboys' needs? Safety primarily?