I wrote up a fairly detailed guide on what all is required for priest renew kiting for Gluth. Here it is if it assists anyone. Things can be changed around such as totem locations and such, but this works best for us.
Image Explanations
Binding Totems: A, B, C, D are primary totem locations. These totems assist in slowing any loose or freshly spawned zombies as well as the outter zombies of the zombie swirl zone.
E is for when we have a 5th shaman to slow the main pack of zombies.
Primary Frost Trap: Primary locations for hunters to drop their frost traps.
Secondary Frost Trap: Locations for hutners to drop their frost traps if a frost trap has been dropped recently in the primary locations.
Priest Kite path: The priest will run this path assisted with Aspect of the Pack.
Zombie Swirl: As the priest is running around in a circle and every zombie is slowed, they will inevitably begin to form a giant pack in the middle of the kite path. Zombies in this area are primarily slowed by piercing howl, improved blizzard, frost traps, and a 5th totem if it is available.
Slowing/Kiting Strategy
Kiting Priest:
When the fight starts heal yourself and begin renewing melee (they're the most difficult to reach on your kite path so renew them now while you can) and as the 1st chow spawn, get moving. Keep shield on yourself at all times. When you run nearest Gluth, renew the melee. When you are running on the sides, renew ranged dps/healers. If you're on the backwall, renew your kite assisters if possible.
~10 seconds before decimate book it to the back of the room in a corner(be careful not to get caught on a "late" decimate, be ready to fade if decimate takes forever to cast once its timer is up as it sometimes does. Fade and run to the other corner if this is the case. Click off the fade buff once you're safe). When decimate is cast, start renewing again within ~3 seconds. Run to the opposite corner of the room and keep your renews up. When fresh zombies spawn they will run twoard you and not get caught in the AoE and kill your very low health casters (optional here to switch kiting priest and use 2 to allow the debuff to reset and mana to regen on the 1st priest). Repeat each decimate
Piercing Howl Warriors:
1-2 warriors will be running with the kiting priest howling anything near him. Stay pretty much ontop of the priest, you will be assisted with Aspect of the Pack to keep up with the priest.
1-2 warriors will also be sitting the zombie swirl zone. Your job is to keep those zombies in that zone as best you can by keeping them howled.
To gain rage to howl, when you drop into the zone melee gluth for ~5-6 seconds then head to the priest. Once spawns have been up for 10-15+ seconds you can take a swing or 2 at the zombies, switch targets and repeat. Don't beat on the same zombie for long or you'll pull it off the priest, possibly get dazed, and die if you're to far ahead in threat on the priest on the zombie. Be sure to bloodrage every time its up. Rage pots can assist if you're having trouble.
Shaman
Be sure your binding totem is down as best you can. If it gets destroyed/expired, get it back down ASAP. You're going to be out of range of healing the tank, but the 3-5 priests and 3-5 druids can handle that fine. If you're looking for something else to do beside keeping your totem down watch the kiting priest. Its ok for you to heal him (only him) if he takes a couple of wacks.
Mage with blizzard slowing talents:
If there is a mage with slowing talents for blizzard, you can drop rank1 blizzard in the center of the zombie swirl zone to assist in slowing the main pack. This isn't really neccessary but can help if you're short shaman/PH warriors.
Mage assistant
1 mage will follow around the kiting priest and rank1 CoC zombies that are close and BE READY to frost nova zombies if the priest gets dazed or otherwise in trouble. Once we perfect our kite, this shouldn't be necessary but is for safety for now.
Hunter assistant:
1 hunter will be designated to follow the kiting priest around and provide aspect of the pack to him and 1-2 PH warriors. Be sure to be on the ball to click off AotP if the priest gets dazed. Feign Death whenever it is up and drop a frost trap to assist with slowing. Be on the lookout to scatter shot single unslowed zombies that are nearing the kiting priest (likely loose fresh spawns)
Tranqing/DPS hunters:
As soon as you've shot your tranq in your rotation, move to a primary/secondary frost trap point and drop a frost trap to assist with slowing.
Raid reponsibility
Healers - DO NOT HEAL THE RAID. Once again, DO NOT HEAL THE RAID. Keep the MT/OT up. For this strategy to work we NEED the raid to be low-mid health. The tunnel damage and fall damage is enough for the start. Decimate will bring everyone to low HP after that. Once decimate happens healers can bandage themselves but ONLY to half health. This is simply to enable you to withstand 1-2 wacks from a loose zombie. DPS should not ever get touched by anything.
DPS - zerg gluth, stay behind the OT in threat (KTM ftw).
Ranged DPS - try to stay max range and on the sides so the kiting priest can reach you easily.
Melee DPS - When decimate hits, DPS down any zombies loose from the main pack that are being AoE'd. Close zombies first.
AoE'rs - Frost nova close zombies and zerg AoE the main pack.
Amplify Magic the raid to assist in threat generated from the kiting priests renews. Noone takes magical damage this fight with the exception of the tunnel nature damage so its ok. We've never had anyone die from the tunnel nature damage and fall damage with amp magic on.