"Scolari is a fantastic coach, a fantastic man and he is so transparent," Luiz said. "So during the year he was showing to everyone his team, so it's natural when you have big names out like Kaka, they only played one or two games with Scolari."
Although just five of the 23 squad members were at the 2010 World Cup, Luiz recalls how they won the Confederations Cup last year and regularly perform for their clubs at the top level.
"I think (it is) inexperienced," Luiz said of the squad. "But if I ask you about the World Cup, I think you know the competition, you know that football pressure. So as players we know the history about World Cups. Everyone knows Brazil has five titles.
"It's the same pressure like you play every friendly game because you need to see it like that. ... I played many of the big games in this season, against all the big teams."
Yet for Luiz, his Chelsea campaign will end in disappointment, with the team eliminated by Atletico Madrid in the Champions League semifinals last week and the Premier League trophy out of reach. "I wish," he sighs. "I wish because this is a big club and big clubs need to win titles. It's natural and when you cannot win, of course, you are a bit sad, some frustration, but that's natural. ... If you don't have ambition you cannot play sport."
Luiz's own future has been in doubt, with the center back consistently linked with a move to Barcelona. But, with just one game left this season for Chelsea, the focus is on the World Cup.
"I don't speak about the future," he said.
Rob Harris can be followed at www.twitter.com/RobHarris