In my opinion, Xavi's job was good to bring Barcelona to finish in the 2nd standings, it means that things are getting better for now, so the final match with Villarreal even if they lose will still be good for Xavi.
I agree with you Xavi will be more prepared for next season, by starting a new career the squad will be shown to remain impressive and next season they will still be able to compete in the UCL with manager Xavi.
At least for now that's the truth.
But on the other hand now they are still not completely free from their current financial situation and it would be good enough for Xavi to cut his current spending and have to shrink some of his players now.
See how their attackers are piling up and unused at the moment, at least they also have to let some of their players go now so that the process of finding new players is also not hampered, especially the current issue is that they are really interested in Lewandowski.