I am a noob to shaman, would it make sense in a 1 pally, 4 shaman setup (the setup I plan to do) to have the Pally pre-consecrate and have 1 shaman do a Purge, or something light on the aggro, just to give an initial pull? The consecrate should provide enough aggro to pull the non-Purged mobs and the Purged one can be meleed by the paladin to get him off the Shaman.
Or is there another Shaman "aggro" that is less...."aggro" than something like Purge?