The Leverkusen team was in great form last season and the players were very confident. The team went undefeated in the Bundesliga and won the title. But the important thing is that Leverkusen will play in the Champions League this season. Consistently performing well in the Champions League and Bundesliga at the same time is a difficult task. So I have considerable doubt that the Leverkusen team will be able to perform as well as last season.
But Xabi Alonso is a very experienced coach. And he is taking necessary measures to strengthen his team. We have seen erratic performances from Leverkusen players in friendly matches. Before the start of the season we cannot say for sure how the team will perform in the upcoming season. But I hope Leverkusen will fight for the Bundesliga title next season as well.
Alonso is not an experienced coach, his coaching career is just beginning, and what he managed to achieve with Bayer is a very big achievement, he was able to set a new record with the club with an unbeaten streak and helped Bayer become champions for the first time in their history, this is a very big achievement.
And experience will be gained over time, like for example in matches like the final with Atalanta, I think for experience it is more important than their entire unbeaten streak, I think that after the defeat in the final he had something to think about. We also do not know how this defeat could affect the team, will they be able to play without losses again, or will this season be completely different?