That's why Bayern Munchen was able to dominate the Bundesliga for a decade, there are lots of big names they have orbited over the years. In the end, Dortmund management always let him go in the transfer market, and the consequences for the club were very real, namely a decline in performance.
The consequences received by the Dortmund team are very worthy consequences and it seems that Dortmund also doesn't mind it for themselves because they can get more money through the transfer market when releasing the best players. But for this season I still really want to see Dortmund compete at the top to make it difficult for Bayern Munich and Bayer Leverkusen.
This season Laverkusen is a team that really deserves to challenge for the championship, and has the potential to break Munchen dominance. Xabi Alonso squad could be a serious challenge for Tuchel, the first three matches show they are very promising this season.
This is already starting to be seen at Bayer Leverkusen, although I am still not sure that Bayer Leverkusen can be consistent enough until the end of the season. Because Bayern Munich themselves will continue to try their best to continue to win another title this season by relying on the best players they have bought in the transfer market this season.