The experience and mentality of Barcelona's players in the Champions League do exist and it will also still be there next season at Barcelona, but in the last two seasons Barcelona have often failed in the Champions League which maybe it's just that there hasn't been a luck factor for Barcelona. And next season I also want to see if the experience and mentality of the Barcelona team as a whole are still there, because other teams have the same thing when they play in the Champions League.
In this case I think the definition of failed is the same as no title, and it's not only happened in the last two seasons but more than that. The last time Barcelona secure the Champions League title was in the 2014-15 season or more or less eight seasons ago. Barcelona became one of the clubs that never failed to qualify for the Champions League group phase during the 2005/++ period and that is a reference to experience as I have explain before.