I cannot agree with your statement. Kompany is really an inexperienced coach. Maybe he can be talented. And with Kompany, Bayern Munich can improve. Even so, Kompany is an inexperienced coach. And his past record is not good either. Kompany previously coached Burnley. But the performance of this team was very poor. The team could not even qualify for the Premier League this season.
Two seasons ago, Thiago Motta and Xabi Alonso began their jobs at Leverkusen and Bologna in doubt of the crowd and we witnessed their success last season. With Leverkusen, they won Bundesliga with an unbelievable unbeaten season and with Bologna they ended in top four of Serie A.
Vicent Kompany used to be a good player and played for Manchester City, worked with many world class coaches and won many titles, it means he got enough experience throughout his career and can use it for his coach career. The European football is witness a new wave of young coach generation like Simeone Inzaghi, Alonso, Motta, Montella, Febregasc who were star players just 10 and 20 years ago. Vicent Kompany can be a next young coach arises in this season with his first big club, Bayern Munich.
However, Bayern Munich management still have faith in Kompany. Bayern Munich's squad is also very strong. Kompany has a chance to do well with this squad. But it is not possible to say for sure that Bayern Munich will do well and win the title next season. Perhaps we can see some improvement in Bayern Munich's performance compared to last season.
He will be given enough time to do his job in Bayern Munich and winning Bundesliga will be one of his tasks, others including going far in Champions League and if possible, win that trophy. With many star players in Bayern Munich, Kompany actually has a very good working environment to do his job well.