Normally football is a way of making money which I believe each club will find a way of getting profit from it, club that are at the top like Bayern Munich that always win their Bundesliga title, they can be blamed because they no the path, maybe they notice selling of players is most than trophy.
And sometimes it is also difficult for us to understand how other people do business in this case because selling players is also part of business apart from strengthening a team. And every team obviously always has their own way of trying to achieve what they want, especially in terms of trophies and after that is in buying players who they think can be good enough to strengthen the team's strength. So this must be seen more broadly because a team must have its own targets.