One of them is the development of Arda Guler's performance, which according to Xabi, he is more developed and in the 2 matches that have been played, Xabi really gives this kid good chances.
Previously, Arda did indeed have great potential, but under Ancelotti, he rarely got regular playing time, which did hinder his performance. However, under Xabi now, it seems Xabi wants to continue exploring Arda's potential to make a bigger contribution to the club.
In the first two matches, he started as a starter, but the point I want to highlight is that he always plays different roles due to his high flexibility as a player. He was quite skilled as an attacking midfielder in the first match, in the second match he was deployed as a second striker, and he usually plays as a winger, so it is clear that Xabi wants this player to develop rapidly now.
While Real Madrid is currently showing promising form, Atletico Madrid is experiencing a decline in form. Their first two matches have been disappointing. They failed to win against Espanyol and Elche. I truly didn't expect Atletico Madrid to suffer such poor results in their first match. I believe that given this situation, Simeone, as Atletico Madrid manager, must make immediate changes so his team can return to competing at the top of La Liga. Because if Atletico continues like this, I think it will have a very bad impact on the reputation they have built up so far.