"That brings us to the Cowboys' current left tackle, Doug Free, who will be a free agent whenever the new league year begins. He could be restricted, but more likely would be unrestricted as a four-year vet. What's his asking price? Certainly as much as a first-rounder, and quite possibly in the $40 million range. That's just the going rate for a proven left tackle, even if he winds up playing the right side again."