When Xavi returned to Barcelona as a coach, initially many people doubted Xavi abilities on the grounds that he did not have much experience as a coach and would have difficulty leading Barcelona because he had never managed any club in Europe. In fact, he managed to prove these doubts by presenting a trophy for Barcelona.
The same doubts also apply to Hansi Flick, I hope he is able to bring Barcelona to its best performance to give Real Madrid competition for the title and make El Clasico exciting again. Flick needs a minimum of two seasons to complete his project with Barcelona, Barcelona management must be patient through the process and support him who is trying to improve Barcelona quality again.
Each coach will definitely have quite fundamental differences in training a team so that the patience to see better results must lie with the Barcelona team management itself. Apart from that, it will not be easy for any coach to immediately adapt to the competition in La Liga which is already known for being fierce, especially when Barcelona meets Real Madrid, where next season Real Madrid will still be a tough opponent for any team. However, it is still hoped that Flick can bring more consistent changes to Barcelona's side so that they can perform well in terms of winning trophies in La Liga.