Nobody can guide him on how to do his work in real Madrid because he is not managing the club wrongly even if we said his strategy wasn't how we thought on the club world cup but he is still the good coach we no, for now he is no longer worried on the starting team because he has seen the players he would be using as the season begin, he had practical experience from the entire team which was something that usually educate coaches to no the real deal, what the players he has in mind will do this season is what we don't no yet because this is not the one they just left.
Well, Xabi hasn't been working with them for long, new players are coming in and it's really difficult to play clearly like that He had losses in the Club World Cup, which had a big influence, A team needs time to work on it and so far Xabi has a lot of work to do, they want more players and some are leaving, so it's a bit complicated , but as the League starts they'll start to Straighten things out.
It seems that you don't know Real Madrid that much, or you just choose to underestimate them that they haven't made any effort to improve their performance and there is no evidence on that. Have you forgotten that Real Madrid only get worse in a season and become better the next season because they always learn from their mistakes. They have the financial strength to buy any player they want in order to strengthen and cover up the loop holes in in team.
I don't really think he does know the team well enough, exactly he doesn't know that even if they don't perform well in a particular season, it won't take them til long to bounce back to winning ways again that's why the club has the biggest history of all teams in the top five leagues in Europe.
I agree with you, Madrid will always be the best in Europe, for now they are building a team that will be very powerful and I am sure that when they reach the highest level the classics will be out of this world, taking into consideration that Madrid last season was a hospital because almost all of their players were injured, now the story will be different, this time Xabi will bet on speed + technique and that combination is really a winning one, obviously leaders like Mbappé and Gonzalo will be there to push in the goals.