The way Dortmund find players for their team is very much clear to me, they are investing in younger players and talents like Jude Bellingham and Haaland this way they find talents they need for their teams and then after investing just a few amounts of money on these players, they can sell players for a huge amount of money, just like what they did with these two players recently.
That is right and they are very good at it, and been for many years. They have interligent scouts and they look for the jewels and convince them with the Champions League and many successes. The current team is 24 years old on average and a new top star is born every year. This year it was Bellingham, next year it could be Youssoufa Moukoko. It is one of the best Clubs in germany.