I ain't got a clue if this bloke who's yet to be appointed will be any good. What I will do is give him time and a fair crack at it.
All these stats can be skewed as per Boris the likes have said.
Eddie Howe is considered a good coach. His Bournemouth team broke FFP rules to get into the Prem, spent millions on staying up only for him to get them relegated in their fifth season with a win percentage of 24%. He's moved on and doing a fairly decent job at the Mags.
It's not all black and white when it comes to looking at track records.