The appointment of Vincent Kompany as the new manager of Bayern Munich really surprised many people, as you said before that he was considered a failure when he was with Burnley and suddenly now he is at Bayern Munich. Even though at first glance the executives at Bayern Munich seem to be playing around in appointing a new manager, I'm sure they have a strong basic foundation (don't know what it is), sometimes difficult decisions will lead to good results, let's see how was his journey at Bayern Munich.
Bayern Munich seems frustrated after failure by appointing some manager before and most of them denied because not interested yet become the next manager for Bayern Munich. I think last option by appointing Vincent Kompany not any teams want to sign him and Burnley more happiness after Bayern Munich paying fees transfer above 15 million euro. I think trend of youth manager success with several teams such as Bayern Leverkusen with Alonso and Dortmund lead to final of Champion League under Edin Terzic maybe reason why Bayern Munich appointing Vincent Kompany become manager although totally failure with Burnley.
Its huge gamble did by Bayern Munich management when appointing Vincent Kompany, if first season get failure I doubt he will stay until his contract over after getting two years contract.