two healing classes
preist\druid
priest\pally
pally\druid
That way one can mana up while the other heals.
Warrior - tanking, but should be able to dps like mad as well.
dps:
warlock\mage\rogue\hunter
any two in a caster\mellee combination. So warlock and hunter, or mage and rogue, warlock and rogue or mage and hunter.
When I did this, it was basically one continuous pull. As one mob was at 25%, the next was pulled. After taking out the Zig boss, send in two to deal with inhabitants while the other three continue pulling.
If you can avoid a pull of mobs, do so, and there are a few that are normally pulled that don't need to be.
When it comes to the Zig bosses, you only need one healer at full mana while the other is mana'ing up. So, so long as one is at full mana and the other is at half and drinking, pull.
Everybody should be DPSing when possible, including healers. Wands or auto-attacks, basically non-mana draining attacks. If you have a pally in the group, s\he can help minimize downtime by judging wisdom on a mob each pull.
Crowd control should not be used unless it is an absolute necessity. When I did it, we would have 4 or 5 on us before a shackle was called for.
If somebody has the medilian of faith from the strath SM side, hand it in at the church as you enter the baron side, that will help immensly when you engage the baron.