My raid group routinely ends up with 12 adds during the first green phase. I let the last three beat on healers, since when they aren't grouped up, they do almost no damage, then when they get all greenish, I challenging shout them all, pop a cooldown, and we AoE them fast. It makes the next phase super easy with only 6 adds to deal with. Plus, it gets you the achievement if you don't already have it.
Kathy, I said, "I'm lost" though I knew she was sleeping
I'm empty and aching and I don't know why
Counting the cars on the New Jersey Turnpike
They've all gone to look for America