This is a pretty embarrassing result for the club who have many trophy champions league. Many observers began to doubt if Xabi can increase Madrid's performance this season. There were some mistakes that prevented the team did not working properly in the first half. Conceded 3 goals in 1st half, labeled Madrid as a fragile team in defense. Many homework that Xabi do to fix it immediately. Xabi must align between attacker and defender, and make the team work like PSG did.
Sometimes I don't understand why Real Madrid still can't improve their defense, even though it's been clear since the Club World Cup started that their defense is lacking. Xabi should be able to improve Real Madrid's defense. He should definitely develop a better strategy, as PSG certainly has strong and capable attacking players. However, hopefully, Xabi can learn from his experience at Real Madrid. Indeed, it seems there's no harm in Xabi learning from Enrique, who has PSG's ability to work well with both the back and front line.
However, Xabi is now solely focused on La Liga and next season's Champions League, as Real Madrid is already out of the Club World Cup. It certainly won't be easy for Real Madrid to win the Champions League and La Liga next season if Xabi can't improve Real Madrid's performance. However, I also hope Real Madrid can bring in new, better players, especially for the defense.