DraQ
Arcane
I agree, it was already weird in D:OS, taxing as well.Wouldn't that be schizophrenic though? Kinda like playing chess with yourself. You would know everyone's motivations and plans; when you enact them you'll already know the reaction of some other character because it's you, while all the while knowing that this outcome was wanted by a third character with whom you orchestrated it. It's more like playing with a doll house than chess now that I think about it. Bashing figures into one another, screaming "look they are having sex!". Ugh, weird.
A good option would be being able to pre-configure other character's personality and then treat them like recruited NPC. But it would be hard to do and test.