Yes, I know that at that time many people did not trust Xavi to handle Barcelona whereas he was a former player at Barcelona before he knew how to play the game he had played while playing at Barcelona, a game that is typical of Barcelona will probably always apply its strategy too, unfortunately it takes time for players to adapt to the game Xavi wants.
Even though Xavi failed to bring Barcelona to the UCL, at least they are better in the domestic league. That's why Xavi needs time to show his quality as a coach at Barcelona, especially now that there are new players joining Barcelona like Gundogan, which might make Barcelona's attack power sharper with Lewandowski. can't wait to see how barcelona plays this season i also hope they play better than last season.

xavi as a coach is not too mature, he still needs more experience to be called a coach who has successfully built barcelona, the pressure that xavi faces is also quite large because if he is not able to bring barcelona to win the UCL trophy then people will question credibility it's training barcelona, in a few hours barcelona will face a friendly match with arsenal, let's see what barcelona can do against arsenal.
They have to begin their careers as coaches somewhere and Xavi really is not that much different from Guardiola, who was 37 years old when he became the coach for Barcelona. I think it is more about their personalities and whether the players respect them although I agree that Guardiola made a better impression at a younger age than Xavi does these days. I can't tell why I think it is that way, but Xavi can be full of emotions in one moment, and in the next moment he looks a bit as if he feels lost and doesn't know what to tell his players. But that has changed for the better in the last season and it was a good performance by both the players and Xavi. But I think the next season is more important to get a good picture of where Xavi stands as a coach.