With next season I think Xabi Alonso will do his best for his team. It is true that defending the title will be difficult because the competition will definitely get tougher in the new season. Also, with Leverkusen being a very good team at the moment, I think they will maintain it and become an even bigger team, but it will be a difficult journey for them.
Leverkusen has really performed extraordinary this season. Even though it was very unfortunate they had to lose to Atalanta. Even though that one match would make them the only team in history with a perfect record throughout the season! It is a record that is impossible to repeat even for Leverkusen themselves. Maybe this will be one of the most memorable seasons. But I admit Leverkusen are really on a different level this season. Congratulations to Xabi Alonso and all the players who succeeded in winning the first Bundesliga trophy in the club's history, as well as this being the first double winner for Leverkusen,
CMIIW.