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.
Before Vincent Kompany was appointed as Bayern Munich manager, they club have tried other possible options but were turned down by the other managers including former Manchester United manager Ralf Rangnick who happens to be the current manager of the Austria national team and Bayer Leverkusen manager Xabi Alonso. So the appointment of Vincent Kompany as the Bayern Munich manager if you ask me was because they didn't have better options which forced the club to settle for the services of the former Belgium international. Because of the fact that Vincent Kompany oversaw the relegation of Burnley, a lot of people are very doubtful that Kompany's rein as a Bayern Munich manager will be short-lived but I strongly believe that he has managerial potentials that'll help him succeed at Bayern Munich