What means "Pool play"?
Navarro came to Beijing with a minor injury from the warmup games, the same than Raul Lopez. Dunno if this has to do with what you say on rotations.
Another thing is Aito always has played doing those rotations because his play idea: give your best at both ends the time your on the court, play with intensity. But to do it you have to have fresh legs on the court, so he has to rest all the players.