I don't know that they quit. They were soft when the game started. It looked to me like they are just not very good. With Zack Martin showing distinct signs of aging the offensive line is pathetic.
What we are seeing is the result of the offseason plan Jerry executed. He allowed too much of their roster to leave at once and as usual he did not replace the guys who left with guys of equal or better talent. Watching Washington I see Armstrong and Fowler making plays, not all the time but more than you see plays made from whoever Dallas puts on the field.
We expected Diggs to come back and play well like he was before the injury. So they let Gilmore go and he is making plays in Minnesota while Diggs and whoever plays on the opposite side of him are giving up big plays and making no defensive plays. I can't recall the last time a Cowboys DB had a pass defense. All I see is WRs running wide open in the Cowboys secondary.
Tyron Smith is not the same player he was 5 years ago, but he is still better than Guyton, and frankly, Tyler Smith wasn't exactly a wall yesterday either. Dak got hit hard a lot yesterday and was pressured more than any QB should be. Too many weak links in the OL now.
Clearly Jerry had a plan to let all those players go. He had to know the talent drain would result in a worse team. If his plan was to clear CAP room to sign Dak, CeeDee, and Micah then he really made a huge mistake because those 3 guys are not good enough to carry this team. Dak actually looks worse than any time in his career. CeeDee is seeing a lot of extra coverage because he is the only threat and Ferguson got smothered by a LB yesterday.
The problem in Dallas is not 1 guy, unless that one guy is Jerry. The problem in Dallas is the roster is filled with a lot of mediocre players.