It wasn't such a bad idea to try to build a fresh team to play with good team work without relying on Messi to carry the team. Indeed Barcelona's biggest flop this season was getting eliminated from the champions league, good thing they have another chance in the Europa league to rewrite the wrongs this season. If they can win the Europa league it could erase their failure in the champions league from the minds of the public.
No way. Although Barcelona is in a deep crisis, it is still a big name and minor tournaments do not matter in this case. Even in the Champions League, it's hard to remember all the teams that have reached the final but lost. We remember only the winners. For Barcelona, the Europa League is a "consolation" tournament and even if they win there, it won't change anything.