The issue of Eric Garcia is one of the reasons that obliges us to be a bit cautious about criticizing the players. We definitely need to strengthen some players, especially in a few vital positions. But let's not pay more than this for that excuse. When a benchwarmer of Xavi's team becomes a fixed player of the top la liga team that incidentally Xavi's team loses to them, then you have to ask yourself if I am seeing the issues correctly? Distinguishing between technical and systematic weaknesses with the individual weaknesses of the players is a necessity to reach the existing reality.
Another issue is about the timing of decision-making. In the downward slope (which I believe we are in) change is a necessity and an obligation. The later you make the change, the more depreciation it will have for the team and especially the new generation who have invested so much in them.
So the expectation from the management and even Xavi himself is that they should not be passive and take action. And by action I mean changing the coach. Whether for a temporary option or for a relatively reliable option like Flick. We have already suffered a lot of damage. Controlling this damage is the least thing that can be done. (Except for inventing a time machine and going back two years and rejecting the option of hiring Xavi.)