I'm very sure with this pattern I don't think Dortmund will be able to win any trophy because giving out their best player means it is impossible for them to have a better squad. If Dortmund must win trophy they should be able to package the best players in order to win a trophy. This haa always been the pattern of Dortmund and it normally ends up with the same results.
In fact it was not bringing out the best players, but rather cashing in on the best players by selling them to other teams so that Dortmund's achievements could only come close to those of Bayern Munich. But it will not pass Bayern Munich as long as Dortmund still prefer to release their best players to other teams who then go back to print other players to be better. However, I prefer that next season Dortmund can compete better in order to win a trophy in the Bundesliga, because for the UCL trophy it seems that it is still a bit difficult for Dortmund to achieve.