I think at the moment he has more pressing problems closer to home that worrying about Mr Ashley. It seems another of his 'close associates' has been abruptly sidelined. Apparently he Has no confidence in her. Quite sudden that.
I have no idea what's going on in the inner circle but one thing I read suggested it is all tied up with the business of trying to oust his deputy.
Not a good time politically for infighting or upheaval really.