Marrowgar: Stay out of fire. Don't run too far during Bone Storm, just dance around the circle.
Deathwhisper: Same thing as normal really, just the MC (you can sheep, hex, stun, fear, etc.), and have both your tanks beating on the boss the whole time in phase 2 - threat will ebb and flow between the two of them naturally as the debuff is applied. Whoever isn't tanking the boss at the moment, taunts and holds the add.
Lootship: Don't die, or we laugh at you.
Saurfang: Taunts need to be precise, healing needs to be quick, DPS needs to be on the ball switching to adds, stunning/slowing them properly and using aggro dumps like Feign Death if need be. Remember that Paladins and Mages can slow the production of Blood Power with Hand of Protection and Ice Block.