~Snip~
It's very natural that after losing Lionel Messi, Barcelona seemed to have lost a leader on the field and that was clearly felt. Even other players such as Sergio Bosquest and Jordi Alba also could not restore the confidence of every player. I think barcelona should have prepared for that and there's no way they will continue to rely on just one player. On the other hand, they also have to develop more and with a new squad, all the legacy of their seniors must continue with the same mentality. Maybe it's not appropriate for a team like Barcelona to experience this continuously and I think they have to break this bad result in the Champions League this season.
Barcelona is heading in a better direction after going through a bad period since losing Messi, it is clear that Barcelona really feels they have lost an important figure that makes them experience a decline in performance because they are very dependent on the presence of Lionel Messi. Xavi is trying to build Barcelona into a team that doesn't rely too much on just one player, the ideology that Xavi has implemented has begun to form with the success of winning two trophies last season.
The squad that Barcelona has under the direction of Xavi has formed a strong chemistry between fellow players, I think Barcelona will soon become part of the favorite team to win the UCL if they are able to improve on the abilities that have been shown last season.