Good question. The problem is the Cowboys suck at running screens. I don't know what it is but the other team always seems to sniff it out right away. Then, they are terrible blocking on those bubble screens. I wish they would toss that play into the garbage forever.
They also don't throw as many slants. Aikman to Irvin running a slant used to be the go to play when Aikman was getting a lot of pressure. But none of the Cowboys receivers, except maybe Noah Brown, are physical enough to run that effectively multiple times a game.
They need to try and establish some kind of running game then maybe play action will help slow down the pass rush.
But this game, like every game, will come down to defense. If the Cowboys defense makes the Washington offense look like the Giants offense did, then I do not see the Cowboys winning this game. And I don't see the defense getting any better so I am expecting Washington to put up 30+ points just like every other offense the Cowboys have faced the last 5 weeks. Washington's Antonio Gibson ran a 4.39 at the combine. He plays RB and they will use him to exploit the slow Cowboys LBs, just like the Cardinals did. The Cowboys DEs have been unable to set the edges all year and Gibson will simply outrun Jaylon Smith to the outside and turn upfield for 15 or 20 yards. If he breaks free up the middle like Drake did, he will score too.