The 32-year-old says the Blaugrana take collective responsibility for winning games, backed Gerardo Martino to remain at the club and insisted Neymar is happy at Camp Nou.
The pair are both lifelong Camp Nou servants but have opted to call time on their careers with the Blaugrana and some sections of the media have suggested next season will be a transitional one for the reigning Liga champion.
But Valdes insists Barca takes collective responsibility for winning games, while backing coach Gerardo Martino to be a success for many years to come.
"I think the Barca dressing room is not characterized by the need to have a leader," he said. "Whenever there has been a problem we have solved it as a group and it will always be. Captains transmit the voice of all the players.
"It would be a wise move to keep Martino for many years. He doesn't just have the years of his contract, he has many more years after that as well."
The Spain international then moved to praise Neymar and says he has the utmost confidence in the Brazilian's ability as he continues to adapt to life in Spain.
"Neymar is very happy, he has everything he could possibly need at Barcelona. I have great confidence in his ability and talent."