AI is good at assembly: sorting references, holding versions, turning a rough note into a first draft. It has no opinion about what the work is for.
So I put it where the answer is already decided, and keep every approval with a person. If nobody can say who signs off, automating the middle only makes the mess move faster.
What is worth measuring is not output volume. It is how many rounds it takes to reach a version someone will put their name on.