It's true, Barcelona won't be able to develop quickly if they don't have brilliantly talented players, what's more, they have financial problems which are a burden, they can't bring in or recruit new players, indeed, Barcelona must fix their problems, after they fix the problems they have. It happens that maybe they can improve things by returning to their previous form which is known for being good in their game, and with them for next season I don't think they will be able to become Real Madrid's rivals even though I hope Barcelona can recover next season.
Improving Barcelona takes a very long time while the main problem that Barca is experiencing is a financial problem which is very difficult to fix unless you can get big investors to provide funds to Barca but that is very impossible in the near future because big investors will definitely choose to invest in bigger clubs without having any problems.
This doesn't mean that Barca performance and finances cannot be restored, but this all depends on Barcelona's financial management, which must manage its finances well to continue to collect money or invest in young players to develop the talents of young players like Lamine Yamal and sell them at high prices to get more profits big and financial problems are resolved immediately.
What Barca currently needs is great confidence from its new coach to be able to provide great enthusiasm to Barca players who can make good contributions and very strong cooperation to form a strong performance.
Barcelona doesn't need to chase higher titles at this time, just trying to defend the LaLiga title is already a very good result.