Usually Dortmund always makes a surprise in the transfer market because it always manages to sell players at a very fantastic price.
I initially thought that after Dortmund acquired Guirassy, I thought Dortmund would sell him for a high price in this season's transfer window. This made me wonder if Dortmund had a good plan this season, keeping him to achieve something. I have a feeling that if Dortmund retains some of their best players without selling them, the team will pull off a few surprises this season.