As much as Hughton is doing a cracking job, Shearer still needs to come in as soon as Moat buys the club. Purely because if (or probably when) we go up, Hughton isn't going to be a long term appointment, is he? Shearer needs all the experience he can get, and he might as well get it in this league. He should be fine with Dowie, Hughton etc all supporting him.
If we stick with Hughton till the end of the season, win promotion and then stick Shearer in, he still has barely any managerial experience. Putting Shearer in ASAP would also allow him to start shaping the squad a little in January.