The big weakness for the Cavs is that they have no one really to match up against McGee.. He can get Thompson in foul trouble and if he does its curtains for the Cavs plus the still have Zaza, so Thompson is going to have to have the series of his life, either that or Frye is going to have to be lights out from three point arch forcing GS to pull their bigs out the paint..
For the Warriors they are going to have to watch out for the dribble penetration attacks of the Cavs.. This is what did them in last year and what Kawhi was able to take advantage of before his injury... If the Cavs is able to attack the paint then this should open up their perimeter game, if not then its going to be a long series for them Cavs..
At the end its almost impossible beating a close match team back to back, so the Cavs will have a steep challenge ahead of them but if anyone can do it this Cavs team has a chance..