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.
My advice for Barcelona is to become more strategic in their spending and get more credible young players to grow. It's obvious that things are no longer the way they used to be for Barcelona unlike in the past where they got their big player squad yet performed awesomely well. Now things are no longer the way they used to be for the club and the earlier they readjust their gameplay and look out for more investment opportunities the better for them.
Barcelona will have no other option but to cut their cost and ensure they spend less so that they can balance up in their finance. They have few young players and they need money to keep the lads if they must grow with the team all they just have to do is to get better and win many trophies so that they can cover up the financial problems of the team.