I don't think the Kompany appointment is that surprising. He absolutely dominated the championship with Burnley, he managed to turn them from a team that where viewed us dull in to the team playing the best football in the league very quickly. It was always going to be a tough ask playing that way in the prem when most teams have better players but I don't think it's a stretch to think that with some of the best players in the world he can get them playing his style and have success in the way he did in the Championship.
He did so by spending a lot of money and I also don't think they were playing 'the best football in the league'.