Damn you!!!!! You've got me thinking of strategies now.

An alternative thought - could one of your warlocks ditch a few of the end talents in destruction to take affliction down to curse of exhaustion? He should still have big critting shadowbolts but that extra utility might just give you the edge.

It would be quite difficutl to manage but in small pulls you could buy some extra time by CoEx on the mobs in a pull. Probably easiest to pull off as the main warlock.

So for example you target your first target and throw your first shadowbolt volley - as it's about to hit throw on a curse of exhaustion. set off another volley then quickly Curse of Ex any of the others. It's a bit like having earthbind

So a pull of three might be seduce one, fear one, Curse of Exhaustion on the one you are burning down, if it buys you time for one more shadowbolt volley that might be enough to burn him down before he gets to you.