I have ZERO faith in Jason Garrett. None whatsoever.
In games of this magnitude the little things within game management count, and that's where Garrett fails miserably.
We got a peek of his shortcomings last week when he decided to attempt a 58 yard FG in a tightly contested defensive battle; but luckily the team was able to survive and overcome.
I think he'll make 3 or 4 critical coaching errors in keys moments tomorrow night, because that's what he does, and it'll leave Cowboys Nation moaning and groaning and wondering "what if" yet again.
My guess is he'll probably waste a timeout challenging a play that was painfully obvious; he'll get conservative once we cross midfield on a key drive and seemingly settle for a FG attempt which Maher will likely shank; and he'll decide to punt in plus-territory on 4th and 2 or shorter. These are the coaching errors that I think he'll make. The common theme from most of his errors is "conservative". Garrett's conservative by nature therefore I think he'll revert to what's natural for him, which is playing things nice and safe.
Scared money don't make money.