The Barcelona team is now most exposed to La Liga. They are currently at the top of La Liga. Barcelona's unfortunate exit from the Champions League. Their main target now is to win the La Liga title, if they fail to win the La Liga title, it will have some adverse effect on their team.
If Barcelona fail to get a trophy in La Liga, Barcelona can still get another trophy this season in the Europa League. However, Barcelona clearly has to focus more on La Liga because they are already at the top of the standings, although not too far from Real Madrid, who are still Barcelona's rivals. Because Real Madrid will certainly focus more on two competitions at the moment and one of them is La Liga. So Barcelona needs to be aware of this if they want a trophy in La Liga this season.
I think that getting la liga trophy is far easy compared with europe league trophy. i remember once barcelona was not able to get europa league last season caused by barcelona was losing against frankfurt. It's caused by barcelona known so well about the play style of any team in la liga compared with the team who played in the europa league. That has the same atmosphere like when barcelona was playing in the champion league. Barcelona may also lose against MU despite the fact barcelona is still far above MU.