They have full confidence in Kompany. Xabi did such things in his first season that now teams expect high things from every future coach. What Xabi did will remain a legend. They are the only teams in the history of the Bundesliga to finish the season undefeated. Although this may seem easy, it is a very difficult record. They finished the season ahead of Bayern and became champions. I'm sure Bayern is already making plans for next year.
As long as Xabi Alonso is still at Bayer Leverkusen, there will be many surprises presented by his players and the aim is to win again next season which will soon come. Bayer Leverkusen already knows a strategy that is very suitable for achieving victory easily. So far, many big teams such as Bayern Munich and others are not at their best and Bayer Leverkusen must make good use of this opportunity to win again.
Staying with Xabi Alonso increases Bayer Leverkusen's chances of retaining their title, especially if Xabi can get the same atmosphere as he got last season, getting the club's full trust to build a strong team because management intervention is often excessive which will create an atmosphere at the club it gets bad.
In my opinion, Xabi's task next season will be much tougher than last season's because there are two titles to defend and they will be playing in the Champions League, when there are bad results, sharp criticism will be directly addressed to him and that will increase the pressure on him as well as the Bayer players, no many clubs in the Bundesliga could win back-to-back titles if Bayer can do that which is very impressive, but I don't think they will return to their unbeaten record because that is something that is much more difficult for them to match.