That was brutal period for Barca because Reals CL wins.
Was more brutal as they won those CL back when we spent like crazy and they basically relied on the core built in the early Florentino period or even before that plus some inspired additions in 2012-2015 period. Some of the key memebers of those 4 CLs in 5 years were signed prior to 2009.
Also, they did a great job transitioning from first midfield which was Alonso, Khedira, Di Ozil / Di Maria, to Casemiro, Kroos, Modric. With zero cost. I actually think they earned more from selling Di Maria and Ozil than they paid for Kroos and Modric duo.
They built several great teams with low cost. And didn't flinch on wages. Also let legends go when they were not top anymore. Basically did all of which we failed abysmally at.
We kept Stegen for ages, they cut Casillas pretty fast when he declined. Kept wages in check, ours ballooned like crazy under Bartomeu. Cut Ronaldo after 3 CL wins in a row, we gave Messi an astronomic contract. They sold players for high fees to fund transfers, we didn't.
Florentino wiped the our amateur of a President.