Who exactly has said he would take us far?
I have seen people citing his fantastic record so far, the fact is he is a young manager who has done well with crap teams, and also I have seen people saying he deserves a chance.
He may be crap, who knows? Guardiola could have been crap. Moyes could have been crap. Fergie and Wenger could have been crap. Coyle could have been crap.
The fact of the matter is nobody will know until you take a chance and his record shows he deserves a shot at it at least.
I agree with Maradona as well. He will lead Norwich to the Premier League and stay there for their season. He'll probably keep them up and then his stock will further rise.