The victory of Leverkusen as Bundlesliga champions last season was magical which has boosted their confidence in the league but about this new season it's very obvious with how they are starting off that they can't repeat the spell of retaining the title no matter how they try because other opponents like Bayern Munich, Brussia Dortmund and RB Leipzig look very set and prepared for them, especially Bayern Munich because to them it's somehow a challenge that Leverkusen had to strip them of their birth right and letting Leverkusen retaining it this season is very unlikely.
Bayer Leverkusen still has the oppurtunitty win the Bundesliga because the league is still young. They still have the quality players since they retained most players who made them champions last season. What is certain now is that they will not maintain their unbeaten run this season since they have already lost a game. The Xabi Alonso side was defeated by RB Leipzig making them to lose three points. The league is competitive with good sides like Bayern Munich with some of the best players in Europe. The surprising leader of the table now is Heidenheim, while Leverkusen is in the eighth position.
Yes, the opportunity is still there for them as long as they can recover quickly after the defeat they experienced. But I am sure they will be able to bounce back quickly because Xabi Alonso has that mentality. I base it on his mentality when he was still a professional player and I think that will make him able to bring it when he becomes a coach now. Xabi Alonso also certainly wants to prove that what he got last season was not luck, but it was thanks to his hard work and the players and they deserved to get the title. The pressure that comes on them will be even higher, because after their success there will be many who expect them and also the opponents who will face them will be more motivated to beat Leverkusen.