Hansi Flick may bring many changes to Barcelona next season, but this will not mean that Barcelona will be able to easily compete with Madrid, barcelona deteriorating financial condition is of course the reason that Hansi Flick will not be able to optimize his ambitions with Barcelona, so I think next season we won't see many differences in the competition between Barcelona and Madrid compared to last season, so it is very likely that Barcelona will only try to compete as title contenders but not as title winners in end season.
I also still think like that where Barcelona can still be a team that challenges for the La Liga title, but I'm not sure Barcelona can immediately return to win the La Liga title next season with its new coach. Because Real Madrid is still trained by a coach who is quite skilled and has very, very talented players in the squad, it will certainly make more of a difference to the players in the Barcelona squad itself. Although Hansi Flick himself is determined to continue trying to turn Barcelona into a better team than last season next season.