"El Tata is close to the players, he encourages the players, he has clear ideas and is doing a great job," Dos Santos told Esport Cope.
"I almost had both feet out of Barca, I had almost closed the deal to go to Real Sociedad, but in the end, with the arrival of Tata I stayed. The players emerge to prominence here at 24 or 25.
"I can play here, I have the conditions, but I have to work and learn from my peers. My dream is to succeed in the best team in the world. It is difficult to reach the first team and now I want to realise that dream."
Dos Santos had also been linked with a loan move to Fiorentina.