It's not a bad idea to mix gear types so you can utilize more drops. It's just more difficult to manage groups with a mix of range and melee. As other people said, rogues are also more difficult to macro than most classes. You could swap the rogue for a hunter though this would introduce the deadzone so you'd have to get used to parking your hunter further back when you're using hellfire and arcane explosion which might get a bit annoying.
As well as the issues people have mentioned above, rogue AE damage is pretty poor. Your clear times would be increased more by a second mage. That would give you a pretty solid spellcleave group. Warrior, priest, mage*2 and a warlock.
Connect With Us