It has sadly become an annual tradition for the Dallas Cowboys. The team signs a free agent that winds up being a real flop, or a veteran just can’t cut it against new talent or due to a decline in his own performance. They make the roster to begin the year, but become a liability on the field. Midseason the team bites the bullet and releases them. Last season’s example was Dontari Poe. Many of us minimized the evidence that he was on the downslope of his career and thought he would really help shore up the interior of the defensive line, especially against the run.