There is very little chance that Barcelona will be able to compete well with Real Madrid, in fact I doubt that, with Barcelona's current players I don't think they will be able to match the players that Real Madrid has. Apart from that, even though Barcelona already has a new coach, that doesn't mean they will be the best in La Liga, but of course Flick will do his best for Barcelona with the players he currently has, if he can coach Barcelona and make Barcelona compete well with Real Madrid. So it was a surprise because he succeeded in making Barcelona become Real Madrid's rival again. We'll see in the future whether Flick will be able to make Barcelona return to its glory days or not.
The young players that Barcelona has must be the best to be able to return Barcelona to a strong and beautiful team with its performance, even though it is no longer Messi's era, Barcelona fans certainly have high hopes for Barcelona to return to its glory days.
Barcelona are in a very delicate situation now ,there's no magic that can be performed for them to be able to compete against real Madrid because real Madrid New signing Mbappe with the kind of skill he possess it will be very difficult for them to be challenged because mbappe is good. And with the new coach that Barcelona has they still need to understand the new strategies that the new Coach will be coming with. And if they adopt early then they will do well but if they don't adopt then they will be definitely left behind no doubt.
Barcelona for now don't even have any strong player to be able to restore their past glory because they they don't even have the money to be able to even buy new players for now. So they have to find a way to utilize the players that they already have. If not the result they will get will be worst compare to that of what they got in return last season.