For the answer, review the Jax game where the Cowboys won 40-7.
Dak wins when he gets good pass protection.
He got good pass pro against Jax, in part because the game plan was for him to run with the ball more often.
They have to scheme to get better pass protection.
On the play in the last game where C-Williams was called for holding, the blame is on the play call/design. That play puts the LG in a bad situation. If they are going to design/call a play that puts a strain on the OG, then do it such that it's the All-Pro Zack Martin and not the rookie C-Williams.
Regardless of the method to achieve it, getting good pass protection for Dak should be the top priority.
Aikman struggled when the pass protection struggled (see 1994 NFC Championship game). If Erik Williams didn't blow out his knee in the car accident, Dallas wins that game.
Good Pass Protection = Dak Wins.