This season we cannot expect anything good from Leverkusen because their performance is not good at all. Last season they were strong enough and they had good players in their team but this season they have lost a lot of strength because they sold them. They competed with Bayern Munich last season but this season Leverkusen will not be able to compete with Bayern in any way.
Leverkusen will try to maintain their position in top four of Bundesliga in order to be eligible for UEFA Champions League. It's important position as it secures their club's financial revenue in a next season and if they can maintain it for some years, they will have good finance as well as time enough for rebuilding their squad and find success in the future.
Moreover Dortmund is not very strong and they are also in the same situation this season that is why there will be no exciting games in Bundesliga this season. There may be a possibility of one-sided games in Bundesliga this season because Bayern Munich is strong and they are strong enough to win the title this season.
It seems like after more than one decade of success with a same strategy: using scouts to find free or cheap youth players, buy them, grow them up to star players, gain success with the club, and sell those players for money with expensive transfer prices, now Dortmund have been facing with big troubles to repeat that success as they are no longer be able to find talented youth players like they did successfully with Gotze, Reus, Lewandowski, Haaland, Sancho, Bellingham.
They are like Sevilla as whenever the good player resources from scout teams are broken, their player resource quality will be affected, then performances. Sevilla and Dortmund are likely going to downsides and maybe the ends of their succes eras.