Xabi has adjusted the balance within the team very well. The players respect him because he has had an amazing career. I don't know if Xabi Alonso will be the coach of Real Madrid in the future, but I observe that he is a really great coach. Bayer Leverkusen is now one of the most popular teams in Europe.
Having a contract at Madrid is something that is currently with almost no level of certainty because he hasn't made it known if he will and moreover I don't know how true because I'm yet to have an authentic confirmation about a news I red that he has a contract with Leverkusen that will last till 2026 so if it's true it means he will be having no deal with real Madrid soon.
At Leverkusen, Xabi Alonso has been able to build a wonderful atmosphere amongst the players which has helped them and their performance, there seems to be some kind of cordial relationship amongst the team they makes them understand the coach well and also boost their chemistry on the pitch so their performance and results reflects the kind of relationship they have in their team and so far there haven't been any case of internal Crisis formally made known to the public amongst them so this is definitely another reason they are doing well to the best of my knowledge.