You have a great point here. Things with Xabi Alonso are really quite good, because things should be moving toward a better and more integrated team , It's obvious that Xabi has made this possible; without him, this team wouldn't have achieved what they did.
I like that he's staying in Germany, and with all these supposed searches by Madrid for a new coach , if Xabi prepares better, I think Bayern will have a very Difficult time winning the Bundesliga again as easily as they did before.
Perhaps Alonso's success was possible precisely because Bayern was in crisis, and when everything began to improve, Bayer lost their former confidence and Bayern returned to their former place. I also think that without Alonso, Bayer would hardly have been able to achieve becoming champions, it was a good season and that is why Alonso decided to stay with them, but I think that he had the opportunity to achieve more with Bayern and he should not have refused the offer to become the coach of Bayern.