Last season was a nightmare for Real Madrid because they lost all their matches to Barcelona. It may have never happened before that Real Madrid lost all their El Clasico matches in a season. Just like they lost the El Clasico match, they also failed to perform well in big tournaments like the Champions League, Club World Cup and other tournaments. The star players of the team, especially those who play in the strike position, cannot be blamed much for Madrid's poor performance because Real Madrid has been playing with a shaky defense line-up from the beginning. If Real Madrid really wants to change their performance and do well in all competitions next season, then they need to improve their defense position a lot. Maybe it is a lot of pressure for the manager, but the manager has to accept this pressure and make the team a top performing team again.
Madrid losses many defender players last season at crucial match when eliminating by Arsenal at quarter final round and losses aggregate 5-1 behind first leg over 3-0 and second leg defeated over 2-1. Overall, Madrid performed quite poor last season not only only losses trophy at UEFA Champion League but also can't winning La Liga trophy due several key players have been injury at important matches. For next season, Madrid have prepare teams quite well by several recruitment and every position have quite well quality player back up, at defender now have Alexander?Arnold, Dean?Huijsen would be best defender players.
Xabi Alonso have prepare team quite well if won't make Madrid back to back failure for winning UEFA Champion League, he has many top players after madrid management spending much money for signing new players and its not any bad reason any more if Madrid still failure for next season.
It's just a matter of time. Xabi is working hard on this team. He's obviously setting up the team to make it competitive initially with their eternal rival, Barcelona. Then they have to become competitive again at a European level. After the poor performance against PSG, they understood that they have to give it their all if they want to improve.