For Heigan I found it best as being the person who is up on the platform to run out from the one corner curve left a little and run straight back. Then do a face about and run back enough the way you just came from to line the team up in a straight line. Then make sure you're AF or jamba strobe is off and you can strafe.

2. Thad is pretty easy Jumping is the harder part. Either Slowfall all your guys or jump them manually. The trick is to turn on DBM's /range feature and jsut spread out 10 yards from everyone. I character can stay on the platform you jumped from just get up on the edge. He's actually pretty easy.

Another 5boxer friend and I have cleared all 4 wings of naxx, other than grobulous its not too hateful. Most of the fights are learning the timing and such.

Good luck!!