Potter is pretty good. Go to reddit sub of clubs like United, Liverpool, Spurs, Arsenal etc, fans there are pissed off as Chelsea got Potter. Though some think he won't be given enough time and will be sacked soon, and most want him at their club in future. Potter transformed Brighton and they are at number 4 if only matches from 2nd April are considered (15 matches,9 won, 4 draws, 2 losses) Chelsea are at number 8.
If he is given enough time, he can do great. Just depends if players egos are managed properly.