Don't forget that Barcelona had financial issues and don't expect them to have made so much money in just one season that is enough for them to get rid of their ugly financial situation because they won the league. You don't know to what extend their financial problem has escalated to before they won the LaLiga title last season. I am not surprised that this is coming up again, because they didn't win any jackpot that will get rid of their poor financial situation. They are only lucky that they brought Yamal into the team who strengthen the club with his superb performance last season.
Barcelona is a team that is currently going through a very critical financial situation because their financial problems have been under discussion for a long time and some people also say that the financial issues have become quite serious. They have also opened up a bit about themselves. But if the problems are resolved, I think this should see more than read how the changes in your team are and who they are. I think that Barcelona needs the luck right now because after financial problems, only luck is enough, that will take you to your destination. But until the financial issues are resolved, I think this team cannot perform well and brought good players for the betterment of the team.