I'm going to clear up a misconception. Dallas' run D is far from Baltimore, but the biggest reason for Tampa's success on the ground was blown gap assignments by the ILB's. They were running something other than the base defense in the first half, and as a result, Bradie James overran a few plays where if he had been in the correct position, he would have made the play. The best example of this was that one long run Cadillac had in the 2nd quarter. Jay Ratliff was blowing up the center on just about every play, but the LB was not there to finish the job. Once they cleaned up and went back to the base scheme, they contained the run pretty well.
They're not going to run that other scheme on Sunday night unless they build up a comfortable lead. There's no reason to, because the Giants' passing attack is nothing to fear. The Giants'' tackles are great run blockers, but match up poorly with Ware and Spencer. NY left Diehl alone against Ware last year and he got a sack on the first play. He can't stop him alone. Not only that, but Ratliff manhandled O'Hara on passing downs. So we won't be seeing any of that "empty" look that they ran against Washington. The key for Dallas is simply lane discipline and tackling. The Giants will get their yards on the ground. It's up to the 'backers to make sure that those 5 yard gains don't turn into 20 yard gains.
It sounds cliche, but Dallas simply has to keep the plays in front of them on defense. On offense, I think they'll be able to move the ball without too much issue. I don't think the Giants match up well with the new "spread 12" package Dallas has been running. I smell a breakout game for Martellus Bennett.