An upset is something everyone enjoys seeing. Everyone loves a Cinderella story. But some leagues are tougher than others. Some teams are just better. Leverkusen, they had a good run, but they're not Bayern Munich. They're not Real Madrid. They gotta focus on whats in front of them, and right now, thats the Bundesliga. Perhaps the Europa League is more their speed. Not that it will be simple even then. Leverkusen, they have to establish their identity. They need to show they can win consistently. Then, and only then, can we start talking about European glory.
In the champions league it's going to be really different away from all that they have experienced so if they are aiming at the European glory, I believe they already have a taste of what it feels like with their achievements and performance last season, only that they weren't able to get the complete glory that was supposed to come with all the efforts and the performance put in place to make the season a very worth while season. This season at the champions league, it will be very deceptive to think that it's going to be same like that of the last season.
Establishment of identity is something I think Leverkusen has done already by virtue of their performance in the last season that got most persons really surprised in the fact that they were able to achieve that much when they were even not rated as a big tea or even a team that is somewhere close to been seen as a big team, this season Al they will have to so is to maintain a statue co or possibly improve in getting to bigger height if possible as that is the best way for them to be able to achieve as much as possible.