As good as they can be at times, there are some major concerns.
The Cowboys gave up a total of 199 points of their 18-game total of 363 in those six losses, yielding an average of 33.1 points a game. Now granted, the defense is only responsible for 41 points in the playoff loss to the Packers, but even in the one game the Cowboys allowed the losing low of 22 points, the defense let the Dolphins drive 64 yards in 12 plays to kick the game-winning, walk-off 29-yard field goal as time expired.