I totally agree with you. Bayern Munich was too proud and treated coaches badly thinking their name and money would make coaches forget. But many coaches like Roger Schmidt saw truth and refused to work with them. It is not about money coaches want respect. Vincent Kompany is in tough spot and it's hard to see him succeeding unless he wins almost every game. Bayern Munich bad culture and lack of support for coaches will likely lead to another failure. Club needs to look at what they are doing wrong and create positive environment where coaches and players feel valued.
Bayern has always been focused on the best players and the best coaches, perhaps we underestimate Kompany, I doubt that Bayern would decide to hire a bad coach, they understand the importance of such a decision too well to risk their reputation. Changing coaches is a normal phenomenon, it would seem even for Dortmund, which reached the Champions League final, but even they had to look for another coach.
The point I've made all along is that Bayern Munich have taken a gamble by appointing a new manager at a club where winning is good but losing is going to draw a lot of criticism. If the club performs well under the company then people will say as they say now that Bayern Munich always focus on recruiting good quality players and good quality managers. But if the performance is a little bad through this manager, then people will question the professionalism of Bayern Munich. But we can't underestimate the decision made by Bayern Munich, if he didn't have a lot of team management skills, then definitely Bayern Munich would not have hired him in the club, at least I have faith in Bayern Munich.