When I saw what Xabi did in his first season at Leverkusen, my attitude towards coaches has changed. Experience is of course important, but each coach must be given sufficient time. Kompany is perhaps a coach who can teach Bayern important football tactics. I'm sure their main goal will be to leave Leverkusen behind.
Of course it was very surprising to everybody seeing the performance of Bayern Leverkusen improve the way they did because following up there performances seasons ago if somebody would tell me that they would be the winner of this season Bundesliga I will seriously doubt it but however Xabi has proven that he has the technical knowledge to take Bayern Leverkusen into another level, so I totally agree with you that is very important for a club to be very patient with there coach because if not for the time Bayern Leverkusen gave Xabi they wouldn't have secure the reputation they did on this season, however in terms of Kompany there is a possibility that he may coach well if giving the opportunity but however I'm only a bit skeptical because he is still very new in terms of coaching.
In as much as I want to hope and have believe that Bayern Leverkusen can repeat or do something similar to what they did last year one same thought fails to jump out from my mind and that's the taught of maybe it's just a one season wonder because believe me they have been lots of cases like the one of Bayern lavekusen and then the next season everything doesn't seem to be working again but seeing what they have literally achieve I still feel the clubs in the bundesLiga will all be out to get this Leverkusen team.