Is central control necessary? I know it's a tough pill to swallow, but I encourage you to think about it some more. And don't think in terms of subsystems but rather real entities.
The subsystems, which I perceive in myself, don't have interesting goals (food) or don't have separate goals at all (motion planning). What's the point of thinking of them as real entities? I don't have independently acting models of other people in my mind, only the model of myself.
Well, language generation subsystems sometimes generates ambiguous statements, which can be perceived as condescending or offensive, but I'm weeding that out.
Well considering that a large sub-set of people who hear voices commit suicide and/or kill their relatives in cold blood I would say that yes, central control is necessary.
We commit suicide because our parents, friends, and the community as a whole are trying to forcibly remove something that can never be wiped away, causing anxiety and fear which amplify every negative aspect of the voices/beings/visions. Suicide is never a risk for me when I have someone to talk to who will listen to me and take me seriously. It's a risk when I feel as though my existence is a mistake because almost everyone treats it as such. It's not a mistake. There's a reason why every sz person I know has a very spiritual aspect to their voices. I've accepted it and I listen, and I gain benefit, but most people with such experiences are told there is something inherently wrong with them and that their experiences are artificial. To that I say, it's no more artificial than your reality.
Well, language generation subsystems sometimes generates ambiguous statements, which can be perceived as condescending or offensive, but I'm weeding that out.