vogel did shorten the rotations during the playoffs. by the end of the miami series, he was basically using 6 guys full time and the rest in short stretches. during the orlando series, it was 8 guys, but first tyler and then leandro managed to play them selves into a part time status.
I agree that the most important thing is getting 8 guys that vogel can trust. That seems to be the best number for a playoff run. If a team is playing 10 guys, it's because they don't have 8 guys that can play.