I hadn't considered that.

I had the most success with dot and run as a single lock - but of course multiboxing with a healer means that I might not need to be quite so mobile.

I also had a thought. I believe interact with target and click to move works with a lightwell (I'm Sure I tried it).
So I could place the lightwell down near the teleport. If a bladestorming warrior comes my way, the warlocks could teleport, and I could target the lightwell on my priest and have it run towards the teleport. (of course follow might work as effectively). The warlocks could then interact with the lightwell too for some heals if need be.

Shame I've got all that way to go to try this stuff out.