Let's see whether the management will be willing to improve for the sake of an achievement, or they will remain as usual. Because in my opinion one of the factors they did not achieve to get the title is because their management is too selfish only thinking about profit.
I can understand that football needs stable finances, but they can actually do both at the same time. It depends on them whether they want to or not, that's the key.
It would be looking about that is all about the profit from selling good and young players to other and big Clubs.
But that is not the case , if they would be tried to keep all that good players i am sure they would be out of money.
Dortmund has a nice talent for give young players a chance to get bigger and out for other teams.
Trust me if they have and got the money in the past they would be keeping all the good players.