That's my expectations on him too, Xabi must have spent a season or two at Madrid before anyone would start to question or judge his credibility and ability to be coaching Real Madrid, Alonso is still an upcoming coach in the managerial job and can't even be compared with Ancelotti's experience with managing a football club. I believe with time, Alonso will replicate his achievements in Bayer Leverkusen at Madrid but not something that will happen immediately as many were so desperate to have seen him win PSG and the club world cup.
Their defeat against PSG has left many doubting Xabi Alonso's abilities, and they're also unaware that PSG themselves suffered a similar fate at the hands of Chelsea. For me, this isn't a worrying thing because in football, anything can happen beyond expectations, and while it's true that Xabi Alonso hasn't fully adapted to make Real Madrid stronger than before it's not surprising.
Ancelotti has been a coach for so long and has successfully delivered titles to the teams he's managed. Comparing Xabi Alonso to him is unfair, as Xabi Alonso is just starting to build his coaching career. It will take time for him to make Real Madrid stronger and I don't think it will be achieved in a short time as many people wish.
Xabi Alonso is just getting started, I don't have high expectations for him at this time. Winning the Club World Cup would be an amazing achievement for him, but since he didn't, I don't see anything wrong with it because his performance there indicates that he has the potential to help Real Madrid succeed in the future, but for now, he needs more time to adapt to the team.
Xabi Alonso will face greater challenges this coming season because Barcelona is still in their peak and they'll be hoping to win all La Liga titles as well as the UEFA Champions League, and that's where the problem lies because if Xabi Alonso doesn't win any trophy, it will be an issue for him, Between the managements and the supporters, because going by Real Madrid history, they don't accept long periods without big achievements and they always expect the club to win trophies quickly.