You took the words out of my mouth.
It's nearly certain that Belichick has noticed the Cowboys OL knack for moving their legs to trip the rushers. And who did Cowboys play the week before that would also tip Bill on the OL's tendencies.
PS - Sure enough, watching Dallas OL against Detroit, there's at least one attempted trip in pass protection.
BTW, whoever is going to be rushing from the right side will have their hands full with Tyron Smith.