3 tanks
3 healers
3 melee
5 ranged (with RDM)

3 vit
2 str
3 dex
3 int (with RDM)
3 mnd

3 tanks
3 healers
3 melee
2 physical ranged
3 magic ranged

There are tons of ways to split the groupings. Most speculation is pointless but it seems especially pointless to base it on that.