One of the reasons why the club management chose Kompany was because Munich had no other choice. There were several coaches who were given contracts by Munich but unfortunately they did not accept them. I even read an article that said that they once offered a contract to Xabi Alonso, but Alonso chose to stay at Leverkusen. I'm not underestimating Kompany but tbh Kompany wasn't their first choice. Munich is a big club and many doubt Kompany's abilities. I think Kompany should be given the opportunity to prove that he deserves to be Munich manager.
As a matter of fact, kompany wasn't on the choice list of Bayern Munich but some how they had to fall back as their last resort after several attempts to getting their preferred coaches, the offer to Xabi was turned down basically because he still wanted to still stay back at Leverkusen. I wouldn't want to say it's unfortunate but then it turned out that kompany is now in Munich and his best is all that's expected of him and I'm not doubting he will be able to achieve something and just like everyone he needs time.