One fundamental problem with this game is that a warrior can't tank as compared to other games I've played. You can easily pull mob aggro away from any tank and a tank can't keep a boss away from DPS. In this game a tank can only relieve some pressure on DPS but can't protect them except for horn of renewal. And because of this on many maps, a tank becomes non-essential because rogue has high enough armor to do some tanking and mages if played right can take over tanking with crowd control. The best elite farming team IMO is 2 rogues and 2 mages. You can't really blame warriors asking them to protect us when its not possible for them to get and hold aggro. Or even cast horn of renewal frequently enough.