Barcelona players currently only need a coach who is able to guide them in a better direction because there are many great players in Barcelona currently. However, all their greatness will be meaningless if their abilities are used in the wrong position by their own coach, so we all need to see how Barcelona's new coach manages every player who is already in the Barcelona squad next season when they want to compete with any rival, including with Real Madrid. Because Barcelona needs to find a more effective solution by not complaining more about their own financial condition.
Flick got a very good team, he doesn’t need to start over, put something together piece by piece to get a result, he already has a good team after Xavi, so it will be easier for him to start, but the final result will depend on the strategy he will use, and the decisions which he will take during the game. He also has experience managing large teams, so he can achieve good results, he has almost everything necessary for this. And if he holds out well in the first season, then he will be able to get the opportunity for new transfers.