Alexander and Cody Davis creeping into the box or setting edge with Quinn having a good game against the run game would be boost towards getting in done. The all the Ram DBs including John Johnson guarding the attempt to make the Rams pay up top is key if they can play a dime D and the fifth and six DBs force the run well that would do it too.
So in a sence Barron staying unblocked is huge.
Rams please move him around and make it difficult for the Cowboys to get their mitts on him .
Tree will likely be asked to stay on Witten more than force.
Something like that could work besides going big up front with Brockers Williams and Donald and shifting line constantly.