Many coaches are rejecting Bayern since the club is not competitive in other tournaments, and they need to sign key players before new coaches are interested in coaching them. Because of how successful Real Madrid has been, any coach who is given the opportunity to coach them will be overjoyed because he believes he will achieve great things with the club. Bayern Munich is a huge club, but I don't know the primary reason why they can't obtain the win title anymore, but let's see how the Kompany will perform next season with the club because Tuchel fail to win the league for them, and the Champions League Kompany can transform the club to perform well and achieve things for the club. Because you can't challenge someone unless you first see what they're capable of, and if the club doesn't see success with him, they won't try to sign him. Let's see how the next season goes or if Bayern sees a change in the league, because they shouldn't let Leverkusen challenge them next season because I see Munich is stronger than them, but I think it's because of the coach that they can't perform well.