I support the idea of behavior choices:
Talk options of:
I. What to Focus on: Melee, Ranged, Healing/Buffing, Offensive Casting/Debuff. etc.
II. Where they should position themselves in a battle: Short, Medium, Long distance. etc.
III. Their level of aggroing mobs: Keep it low, Hit everything she sees, etc
IV. Targeting, whom they should definitely target: Lowest HP mobs - weakened, Highest hp mobs - uninjured., Bosses, Casters, etc.
These calls would make them very useful, granted they follow your directions
.