Who is pronouncing these "edicts" and why?
Also, I didn't know that The Child was originally a Phase II idea. Interesting.
I would have to assume Cawley. I suppose there is a certain amount of truth to the fact that the "main three" have just sort of... been there in the last couple of episodes. I don't think that happened all that often on TOS. Even when the story didn't entirely center on them, they were part of the story.
Why they need to bring in a guest star for The Child
, I'm not really sure. I would think they could just as easily use Uhura as they did Troi.