So what do you do...?

[Nir]

You're tanking a heroic on your warrior doing fine with 3 mobs. All of a sudden 4-5 more aggro and you're having trouble tabbing through the clumped up mobs in the middle of your screen. This has happened to me a couple times, the worst being me missing a mob that got lose and wiped the whole group. I usually panic and hit the challenging shout button, if that's not up shockwave will buy you a couple seconds, but is not foolproof. So what I want to know is there any mod/way to make sure I don't miss any of the mobs on my screen? I usually demo once/keep cleaving while I'm on my main target and keep switching to the others using shield slam/revenge/con blow to get threat.

[Krehinth]

I use Tidy Plates Threat Plates and click on the nameplates of the new mobs.

[nserafini]

I use Tidy Plates Threat Plates and click on the nameplates of the new mobs.

+1 no more TAB then look an Omen;