Bit of a heavy claim that mate, give him at least a full season (I'd argue 2, but one bare minimum) at a club with *his* team before drawing any definitive conclusions like that. Few months at Hull, few months at Watford, few months at Everton - he needs time & patience, a few months is the equivalent of 5 minutes when you're trying to instill your identity into a football club, never mind trying to integrate new signings and lack 1 or 2 profiles required, which I think he'll suss out this season. Thought the Watford sacking was one of the most ridiculous I've seen in recent times, I'd say only Ranieri tops it the last 5 years, and even at that, I'd say the Ranieri one was more expected.
He's clearly a very, charismatic talented coach, who tries to play football the right way. The Paul Merson's & co. will have a field day over with these inconsistent results though...."foreign *****".