The last time Barcelona won the Champions League, they did while also taking home the La Liga and Copa del Rey trophies. 2015 was a magical year, with a front three of Lionel Messi, Luis Suárez and Neymar at the absolute peak of their form together, a great midfield and a very strong defense. They also had squad depth, and Pedro Rodríguez was amazing as a backup to all three of the attacking superstars.
And the fact is Barça miss Pedro. A lot. And since Pedro left for Chelsea the club has been trying to find another one.