Dortmund is a team that very often sells the best players they have printed and almost every season is like that. I think it will not be difficult for Dortmund to find a replacement for Bellingham which they sold to Real Madrid, because selling the best players is like a business for Dortmund so I will never be surprised when in the future Dortmund sells the best players again after they have trained them with pretty good. Likewise with Bellingham which they have sold to Real Madrid.
Actually, I think it was Bellingham's absence in the last round match that prevented Borussia Dortmund from winning the coveted title and interrupting the hegemony of Bayern Munich. Therefore, I would choose words with great care that it would not be difficult for Borussia to find a replacement for Bellingham. Moreover, now Bellingham cannot even theoretically go out on the football field and help Dortmund in the new season.
Bellingham's absence in the last game was due to an injury which required him to step aside on the pitch. Maybe that was the last game he wanted to play before leaving Dortmund and joining Real Madrid. But fate said otherwise and surprisingly Dortmund failed to win the bundesliga title and at the same time Bellingham failed to get a parting gift.
But as a star player Bellingham must learn to accept the harsh reality and he hopes to start a new step with Real Madrid. It is certain that Dortmund will still find it difficult to lose Bellingham during that time and there is no guarantee that there will be someone like him at the moment.
Borussia dortmund doesn't really think about that because for dortmund Bellingham is just a past player who deserves to be sold and we must always know that dortmund never keeps its best players but always sells that is Borussia dortmund's business goal.
We must always know that Dortmund itself is not too concerned with titles but is always looking for new players who look talented and educate them until they have good performance after which they are sold again. We don't need to expect anything extraordinary from Borussia dortmund.