Carlo Ancelotti was the last guy that took them to champions League, that was before xabi Alonso came in some few months back and took them the club world cup.
It is true to say Carlo Ancelotti managed well and brought Real Madrid to UEFA Champions League last season and even two seasons ago he won it with the club. However, it is not accurate to say Xabi Alonso took Real Madrid to the Club World Cup. It's what he heritaged from Carlo Ancelotti but both Carlo Ancelotti and Xabi Alonso did not help Real Madrid winning any title in this season.
There's no doubt that Xabi Alonso is experience but the technicality that is required in Real Madrid this period needs him to think way deeper, first their performance in the club World Cup was a mirage, it was below expectations and the leakages are still there.
Xabi Alonso succeeded in Bayer Leverkusen but his experience as a head coach is very limited, with only about three seasons and even he has great talent for a coach job, he will need to be tested by times and more seasons. I believe that sooner or later he will succeed with Real Madrid as what he shown in Bayer Leverkusen is very impressive. He shown some signals in early matches with Real Madrid that he will be able to do his management well there.
With the way Barcelona is formidable this time around with Lamine yamal, trust me Madrid are going to get a serious fight for the title this time around.
Barcelona don't only have Lamine Yamal and this young player needs to have good team mates around to play well. He play with team mates and win matches as well as titles with his team mates. Barcelona surely can not rely only on Lamine Yamal to win titles but they already have very good and competitive squad so they will continue to be a biggest challenger against Real Madrid in La Liga next season.