If Barcelona become insistent on playing the same game in the Champions League it is really difficult to put them among the biggest title contenders next time. Because they still can't even get past the group stage. In the last season they could have done this by at least leaving Inter behind. But it is clear that something needs to change immediately.
Xavi played with this system in his player career for so many years of course. I understand why he insists on this game logic. But it is clear that it doesn't work in the CL while it does in the La Liga. Barcelona have really skilled youngsters and a great striker like Lewandowski.
With some additions to the team in the transfer window and some adjustments in the game strategies they should be more competitive in the CL.
If I'm not mistaken Barcelona last won the Champions League trophy in the 2014-15 season and then they didn't have that success again in the Champions League. They are doing well in terms of league titles but I don't understand why they are not doing well in competitions like Champions League. Sometimes looking at their Champions League performance, it seems that they are not focusing much on the Champions League and their main focus is on the league title.
Many managers have come and gone at Barcelona. Many managers have succeeded for Barcelona and many managers have failed but Xavi has to prove that he is a successful manager for Barcelona. And Barcelona have faith in the right manager. He will have to do whatever it takes to prove himself successful and the Champions League will be the most important thing.