Vincent Kompany has indeed gained great experience in the past but it is not a guarantee that he can make a difference to Bayern Munich, while Alonso is more able to provide a guarantee of being able to win the Bundesliga title again because Vincent Kompany is also his first time managing the Bayern Munich club, whereas it takes a little time to adapt and be able to brought changes to Bayern Munich's performance.
It looks like next season Bayern Munich will have to accept bad luck again or maybe worse, lose the Bundesliga title again.
Bayern Munich is strong enough to deal with their current challenges and eventually hitting harder for trophies. Bayern Munich have nothing to worry about because they're elite team and will dive in for major titles next season. This season they missed out but it doesn't mean they will struggle. Give him a chance and stop the panic. I've this feeling about Vincent Kompany excelling in Bayern Munich next season. Remember he's young and promising coach, he also gained experience to capture the long picture for the club.
With a number of quality players in his squad, Vincent Kompany efforts to bring Bayern Munich back to dominating the Bundesliga should not be a difficult task, but Leverkusen existence is a big challenge, which is also the reason why Vincent Kompany's managerial quality is doubted by many parties. I agree to give Vincent Kompany time to prove himself, everything needs a process like Xabi Alonso when he first landed with Leverkusen. Fans concerns are understandable, but it would be unfair to judge Vincent Kompany at this time, because we have not seen him accompany Bayern Munich in an official match.
Meanwhile, thanks to Leverkusen we no longer see the Bundesliga as a boring competition, as well as the increasing performance of teams such as Suttgart and Leipzig, which gives the impression that the competition for trophies is now more competitive. Vincent Kompany definitely needs adaptation, adjusting his strategy to his players, I don't think this will take long.