Bayer Leverkusen did give a surprise to its supporters because they managed to win this season. As long as the coach that Bayer Leverkusen has is Xabi Alonso, then of course he will still give his best guidance and try to win again next season. Currently, Bayern Munich's toughest opponent is not in their best condition, making it very easy for Leverkusen to win in the Bundesliga this season.
Apart from Bayer Leverkusen's rivals who are in poor and unfavorable conditions, everyone also has to admit the ability and level of consistency that Bayer Leverkusen has this season. So the impression is not only about the weakness of Bayer Leverkusen's rivals this season, but also includes the efforts and extraordinary efforts of the Leverkusen coach this season in providing the best tricks to all his players so that up to now Leverkusen is still unbeaten by any team they have faced this season.
Even though Bayern Munich is in an impossible condition or experiencing significant decline, they are still strong team, and if Leverkusen cannot perform well then they will also not be able to surpass Bayern Munich performance.
Bayern Munich decline in performance cannot be the reason for the success achieved by Leverkusen because this success was due to their prowess, led by Xabi in the struggle for the title.
Just look at their success in becoming Bundesliga champions, they can also be team that enters the final of the Europa League and also the DFB Cup.
If Leverkusen does not become developed and stronger team like now, it will be impossible for these three competitions to be able to hold the opportunity to win the title.
Saying that Leverkusen could become champions because their rivals experienced decline in performance is not an accurate statement, after all not only in the Bundesliga but in other competitions so none of that is the reason for Leverkusen success.