The fact about Xavi Alonso is that he is still a young coach and he is not experienced a lot, which means this coach can even have better performance if he gets experience and starts working in some other teams.
Maybe that's a good reason to say other teams like Real Madrid and even Bayern Munich are going to show even more interest in hiring Xabi Alonso soon.
Xavi Alonso is a young coach with good coaching experience. He is the son of a coach, and he has been coached by almost all the greatest managers: Morinho coaches him as a captain at Real Madrid, Pep Guardiola coaches him at Bayern Munich, and Anceloti also coaches him. This means he has so much experience from different coaches that it is enough for him to be a great coach in football history, and he has started his coaching journey with an impressive performance at Bayern Leverkusen this season.
I think with this performance and coaching skills he is displaying in a small team like Bayern Leverkusen, if he accepts the Real Madrid offer, he will do well more than expected because he will have all the players he needs in a team, and the fans and the atmosphere in Santiago are something that will encourage him, especially as he is also from Spain.