Sort of with Skurm here.
I have found though, that the rotation for trash as i gave it, produces less threat issues than other rotations i have tried.
If i could try explain to my best... pls note words might fail the illustration.
with DnD clicked, i place the marker so the back of the circle is barely at my feet, meaning the circle will be right in front of me.
I keep going untill the top of the circle almost touches the intended pack to pull. Tab to caster target.
Click the DnD, Deathgrip the Caster (Important to note though i have Horn of Winter Macro'd in WITH deathgrip, so it does trigget global cooldown).
As soon as your DnD goes in, mobs will likely already have either body aggrod, or aggrod to DnD.
Deathgripping the caster with Horn triggers the 1.5sec global cd, and by then all the mobs are in distance enough to be hit properly by Howling Blast.
Immediately firing off 2x Blood Boil right after that, you should not have any problems with aoe aggro.
I have not yet found a better way (that works for me anyway) into AOE aggro for 5mans.
On the odd chance some rogue goes monkeyballs on a different target than my target, imo, he fails at 5mans for not being able to use assist. I let those dps die. In fact, i stop what im doing, push no buttons further, and WAIT for them to die before i continue. This is often communicated to the healer as well to avoid any of those problems.
The reason i insist ppl kill my initial main target is so i can pop the Corpse Explode for more AOE aggro, basically sealing the deal on threat.