David Irving spent the first four seasons of his professional career with the Dallas Cowboys Defensive tackle David Irving, who played for the Las Vegas Raiders last year after being reinstated into the league, spent the first four seasons of his professional career with the Dallas Cowboys. In a recent interview, Irving told The Athletic that he didn’t enjoy his time with Dallas at all. "I hated going to work for the Cowboys," Irving said. "A Cowboy is all hardy har har and all this America's Team stuff.