I'm not advocating we take AVB, but, he's experience at winning major trophies and he's been in charge of big teams with high expectations. He's got a pretty good win % too across different leagues. It's not like he's shit, although he is a bit of a cunt.
His crouching and 'celebrate with me' routine isn't exactly that worse than 'dont be in the envelope' or 'only trust each other, oh, and the fans, oh and your families'.