Again, I do not know this for a fact, nor am I clear that it was his idea or the BBC's....

But suffice it to say that from everything I've heard about Writer's Tale, everything I've seen in his interviews (especially the defensive ones), he hasn't heard "no" in a long time.

And I will even admit that he has done some amazingly good things - he did, after all, rehabilitate Who. But Hollywood is NOT kind to its own and less kind to outsiders, and people with egos and a couple of excellent credits to their name are a dime a dozen there.