Barcelona are now fully working towards becoming La Liga champions. Xavi is working more on the team's weaknesses. Because if Real Madrid is the opponent, you have to work very hard to win the match.
Xavi has been using la liga as the last chance to get the trophy. it seems like that he has no chance to win europa league with the current squad. barcelona might become the most favorite to win the europa league but i have seen last season has become the most reliable evidence if barcelona can be beaten by a team from bundesliga easily. I think that the same scenario would be happening with barcelona again. That's why xavi has been putting his focus into the la liga caused by it needs to be consistence compared with europa league that will force your team to go all in for the league.
Barcelona has no lots of chance to win the europa league title. It seems like barcelona may lose in the first match of europa league.