The European League is indeed filled with strong teams. the competition is tough and we can see that everything is an exciting match.
Barcelona did very well in La Liga, but they lost in the UCL. I don't think Xavi and Barca want them to fail again in the Europa League, even if it means silencing Man United. I believe all teams are trying hard to get their top performance. this is not an easy word because after a long holiday and starting again with the league. the coach may need time to rearrange the squad.
Of course they can't do the same thing as last season when they also had to be eliminated from the Europa League.
This is their only chance to get more money apart from the domestic league they are in so that their financial condition in the calculations will not be as negative as before.
They have to prepare for everything possible and Xavi as strong as possible has to be able to make this profitable for Barcelona because in any case they need the Europa League now apart from securing Xavi this is also used as a big momentum in the season to come because if they fail to come back they are basically expensive players those who are brought in will be considered a failure and so will Xavi.
if not managed to get the Europa League. It will also be difficult in La Liga because Barcelona is not completely safe yet. Madrid is very close, and it won't be easy for Barca.
if the Europa League is too difficult for Barca later, hopefully, Barca can focus on La Liga, that's all that can prove the current performance of the squad. Likewise with Xavi's proof. though fans can see how much change Xavi has brought to the team. without trophies, you will not be praised.