Financial problems are quite a big obstacle for Barcelona, but they have quality players who can compete with other teams.
The coach also influences the success of the team and currently Barcelona has not found a replacement for Pep Guardiola.
Financial problems have an effect on recruiting inappropriate players and coaches which also has a very fatal effect.
Regarding competition with Real Madrid, it is indeed difficult because currently Barcelona does not have the ability to match the quality of players that Real Madrid has.
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.
Barcelona has enough young players that must be developed, Flick's job is to be able to make these young Barcelona players into brilliant talented players so that they can become key players for Barcelona. They will not be able to experience changes in the game for the better if the players and coaches cannot adapt well. Apart from that, what you say is true, they will not find the best if there is an understanding that cannot be understood well, that is the importance of adapting to each other, even though Barcelona is having difficulties in players because of their financial problems which are an obstacle, they must be able to develop as long as the tactics implemented by them This flick is effective and can make Barcelona recover.
To be honest, Barcelona should be able to rise from their downturn, even though they are not that bad, they need to change for the better in the next season, to compete fiercely again and become Real Madrid's rivals again.