Leverkusen is still have their coach with them that made the victory possible so it is an advantage to Leverkusen to be able to try as much as possible to win the league again because Xabi Alonso will improve the performance of the club as time passes by. I know that they cannot be unbeatable next season.
Football fans who do such are tiring, it's same way they brought statements of Harry Kane being cursed and how his goals have been hunting down Bayern Munich all throughout last season games and fixtures.
First, they're not in the same League Competition, secondly, they're having two different situations. Which is completely different from whatever that happened with Luciano Spalletti and the management of Napoli. I'm glad to see that they did take responsibility for the flaws of the club.
Bayern Leverkusen will not fall off, they're also making good signatures gradually to add depth. They're making too much, but having Xabi Alonso is enough. I don't know though, but expecting too much from next season is not what I'm saying but they won't be off the first four clubs in the standing.