One weakness of Xavi Hernandez is that they are still in the financial crisis experienced by Barcelona which has an impact on the lack of player intake that Xavi Hernandez needs, but the positive thing is that Xavi Hernandez and Barcelona are still able to survive even though financial problems are difficult to get out of this condition, because they They have already cut the salaries of their players, but this doesn't seem to guarantee that it will be a good solution. Maybe one day there will be an investor who will be able to bring Barcelona out of this situation in order to restore their former glory under different circumstances.
Barcelona have continued to work on many solutions to maintain the financial stability of their current club, various ways they have done including selling star players, cutting wages, selling young players and even reportedly when Barcelona also no longer give lunch to young players who train in their academy just to prevent the club's expenses from growing, And reportedly this season Xavi coached Barcelona for free because indeed he has given this season's salary to celona so that the club's financial stability is maintained.
What Barcelona are doing now is indeed very capable to make them continue to stay in La Liga and also continue to exist in every game they are currently doing, but I think precisely what Barcelona are doing now in defending their team is like a time bomb that can explode at any time, and of course over time Barcelona's burden will greatly increase in the future if they cannot get an effective solution to overcome the problem Their finances so far, or indeed maybe Barcelona should have been taken over by another party who is indeed able to provide a large investment to solve all of Barcelona's current problems as you said.