Although Dortmund is always considered as a player selling team, but I think they are still trying to be a champion contender all this time, yes maybe they didn't succeed in winning the championship trophy but at least it will increase the market value of their players so far, I think there is no big team that doesn't want to win the championship trophy In the end, however, we also cannot deny that without selling players it will only make the several team not run well, because they do not have strong finances compared to other teams.
Dortmund terrible squad with their former star players:
This was when Borussia Dortmund was feared by most of the teams on this Bundesliga because this squad has created a lot of good record for the club, so indirectly this was the players that made Borussia Dortmund to have the kind of respect they did then, actually imagine if this kind of players are still in Borussia Dortmund they would have been dominating the Bundesliga more than the way Bayern Munich has been on the league because Borussia Dortmund use to be very consistent on there Bundesliga then but now a lot of things has changed about them, though Borussia Dortmund is well known in terms of generating a good players because the above listed names are currently doing very well on there current clubs. Dortmund terrible squad with their former star players: