Barcelona needs to win the Europa League in my opinion because they need the money badly as they are in quite a big debt still. Napoli is a very hard opponent for this Barcelona squad but I think if Barcelona can play their level best they will be able to beat Napoli.
Look, the prize money given in the Europa League won't make such a big difference. Of course, all money is welcome, but the prize money will certainly not be the most motivating element for a team like Barcelona.
We can understand that, when we look at the winners of the Europa League in recent years, and we look at the teams that took part in the tournament, and we notice that the teams that normally go far in the Champions League often end up not even reaching the final.
Barcelona want to win, because like any good team, that's the objective. Now I'm not sure how much money the Europa League can give, which will be a motivating aspect.