Barcelona management should have found a suitable replacement for Messi and then released Messi. Then they would not have to face such a bad situation. Now Xavi is trying to stabilize the team. We don't know when the Barcelona team will stabilize. Barcelona is out of the Champions League. Now they aim to win the Europa League and La Liga titles. I think if Barcelona can win the next match against Manchester United then they will be able to win the Europa League title.
I think that if Barcelona is able to beat Manchester United it doesn't mean that they will be highly favored as winners of the Europa League trophy because every team that passes to the next round will definitely try hard to achieve their hopes of becoming champions. barcelona and messi have parted ways and it is a memory to be reminded of. Xavi and Barcelona management will find it difficult to repatriate Messi because Messi has accepted a new contract offer from PSG.
Barcelona can end their fast of titles if they are able to appear consistently in the Europa League and La Liga because Xavi and the Barcelona players have to make the most of these two opportunities.