Kompany is not an experienced coach and he doesn't even have the enough knowledge. I think the only reason for Bayern Munich to hire Kompany was because him being available because before trying to go for Kompany they tried to hire some other coaches while they all rejected the offer from Bayern Munich because working in Bayern Munich is the current situation was a big risk for any coach while Kompany did it because he had nothing to lose.
I think you are too much if you claimed he has no enough knowledge. He won't be successful winning a trophy with Burnley if he has no enough knowledge. Bayern management is impossible to hire a person who has no proper capability as a manager of Bayern squad. They must see something special with Kompany, so they are interested to change Tuchel with Kompany. We don't forget that Tuchel is one of top coaches in the world. Bayern management must prefer to keep Tuchel if there is no something good with Kompany.
Mate, Kompany has managed 2 teams so far.
1. RSC Anderlecht
2. Burnley
https://www.transfermarkt.com/vincent-kompany/profil/trainer/69681I know his experience isn't as well as Ancelotti or other top coaches. But he clearly has experiences in coaching football clubs. Every experienced and top coaches also managed few teams only when it was in their early career as a manager/coach. Kompany is a young coach/manager, it is normal if he only managed 2 teams so far.
It’s only fair that fans are concerned about Bayern’s future with Kompany, due to Kompany's team getting relegated last season to him being Bayern's boss really does seem like a fairytale. But we have to keep in mind that the Bayern directors mean business with every signing they make, and Kompany is someone who has a lot of potential. His man management, modern-day football style, and adaptation are unique and show a lot of potential. On paper, he might not be someone extremely lucrative, but this is a very exciting prospect and will be a fun story in the coming season for sure.
Regards
Duke