At level 70 a 5 shaman team is as much of a PVE team as a PVP team.

Edit:



Here is the flexablity of the 5 shaman team.

This guy is a pansy and I can kill him before he kills me. 5 dps out there

Ok I need a tank b/c this guy hits hard. Ok I will drop my earth elementals. Still have 5 dps out there.

Ok i need a tank and I need to heal that tank b/c this guy hits really hard. Ok I will drop my earth elementals and make my main heal them. Still have 4 dps out there.