It's only the coach of a club that can understand the strength and the importance of the players in his team. The management does not knkw this. Flick knows how important Fermin is to the team which is why he didn't accept Barcelona to sell Fermin because he knows the problem that will pop up if he leaves the club. Flick has tried his best to build a strong team and Barcelona management wants to thwart his effort.
Flick's decision not to agree to the sale of Fermin was the right one, as Barcelona cannot afford to sell their current players carelessly if they want to strengthen their position next season. The team will undoubtedly feel the impact when a good player leaves, especially if Barcelona cannot then acquire another player of comparable quality to the one they sold. Therefore, not selling Fermin was a good move, and it's clear that Flick has seen the team's intricacies, which is why he immediately disagreed.
Yes, Flick certainly knows what he needs to do to make Barcelona perform well next season. Not selling Fermin is certainly a good thing, as Fermin is a good and reliable midfielder. If Fermin were to leave Barcelona, it would certainly be difficult for Barcelona to find a player like him.
Next season, competition will certainly be fiercer, as Real Madrid certainly doesn't want to fail to win another trophy next season. So, Barcelona will certainly have to work harder next season. Keeping Fermin at Barcelona, even though other teams like Chelsea are interested, is certainly a wise decision for Barcelona, and will ensure Barcelona continues to perform well next season.
I think Barcelona will have the potential to be even better next season, as it seems there's a possibility Jonathan Tah will join Barcelona. I don't know much about Jonathan Tah yet. Will he officially join Barcelona? And do you have any accurate information about him? It's certain that Jonathan Tah officially becoming a Barcelona player will certainly make Barcelona perform even better next season.