Would there ever be a possibility of someone like Tojo, Yamato, or any one of a number of people to gain and keep their military power joined with domestic authority and keep it? One can of course argue that they had it for a while, as well as far more securely that the Shoguns of the past, though there was still the issue of the Diet being able to condemn them or the Emperor to show his disapproval. This might not be the clearest of opening posts.