I'd like to think that ZW struggled in part because of his first live game since injury and because the staff finally adjusted the offense to be more productive....thus Romney's success. If ZW comes out against UMASS and does the same stuff where he can't make reads fast enough to get the ball to the right players before getting sacked then SDSU could be a mess.
I think it will depend on Grimes and Co. If the OLine turns in another performance like they did against ISU then it's a crap shoot.