Quote Originally Posted by SundayTrash View Post
ur talking as if all the fight were tank and spank, how about a fight that has high raid wide aoe, that would need u to be spec to defensive, or a fight with waves and waves of adds that would require TP/MP reduction, or fight that has high movement that would benefit shortcast, there is no correct or best spec if the fights were design with mix and match mechanics.
True, but then there is a best spec per fight, and you're expected to switch to that before the fight.

WoW's system in Warlords was exactly this. There were talents for different situations, and it was expected that you change spec on a per-fight basis. At that point, your character no longer had a build. Your build was every talent based on what you fought.