If I should judge Kompany based on his career records, he is not a bad coach. At the same time, he is not a good coach, so from my perspective, I view him as an average coach. Honestly, I was surprised that Bayern Munich chose Kompany as head coach because, based on his record, I don't believe he deserves the position he holds at Bayern Munich now. I can't yet conclude on his performance at Bayern Munich, but I don't expect any great performances from the team under Kompany as coach.
I remember how Chelsea made mistakes by signing Lampard as head coach, and nothing good came of it. I just hope the case of Kompany does not turn out like Lampard's tenure at Chelsea. In my view, Bayern Munich might be too big for someone like Kompany to coach. However, he does have a good squad at his disposal, which could help him perform better.
I also believe that Bayern cannot afford to hire coaches with such insignificant experience, but for some reason they decided to do it. This is trust in advance for the Кompany, for him this is a huge chance that can radically change his life if he manages to take advantage of it. My opinion is that this is definitely not the best choice that Bayern could have made, but apparently they want their team to get the same talented coach as Bayer did when they trusted Alonso and achieved tangible success.