Until the greed of money is removed from this club, you should stop expecting anything good from this club.
Dortmund is in business to maintain the team's existence. Greed for money is necessary. We see them doing business to make a profit for the club. And they cannot retain players when the club's reputation and salary are not as high as big clubs. Selling when the price is high is a good choice for the club and the players.
I still hope big sponsors see the team's potential and are willing to invest in them. Dortmund will not be forced to sell their star.
The business that Dortmund has been doing so far is very profitable, they produce talented young players and then sell them at high prices. In terms of club income, they can make big profits, but in terms of club achievements, it is very difficult for them to get trophies. What Dortmund has done so far has also been done by Arsene Wenger Arsenal, they often sold talented young players to increase the club's income, then looked for new players to polish into talented players. Now Arsenal has realized that the club's achievements are much more important than money. The more the club achieves, the easier it is for them to get money.
Dortmund is now starting to have difficulty competing for the Bundesliga title, Leverkusen and Stuttgart are in first and second place, Bayern Munich is in third place and Dortmund has to settle for fourth place. The presence of Leverkusen and Stuttgart in the fight for the title which has been dominated by Bayern Munich will make Dortmund's hopes even smaller.