I have a hunch not much changes. Deron will probably freelance a lot more than usual, and this will probably lead to fewer assists, more turnovers, and even worse defense. Only way this works to Utah's advantage is if Deron and the guys run, run, run and run some more. PHX is a fast-tempo team and it will be a track race. If Deron wanted to cut loose from the half court, there is not a better team in the league against which to challenge this assumption.
If Utah gets punked by 20, I will not be shocked at all.
Look for the arena to be empty by the end of the 3rd quarter if this happens.