The Selecao were slated for their defensive deficiencies after the World Cup but they have now won five games on the bounce without conceding a single goal
David Luiz hailed Brazil's rediscovered resilience after Wednesday night's 4-0 rout of Turkey in Istanbul.
The Selecao were criticised for the defensive and mental frailty following their World Cup elimination earlier this year but they have responded with five successive victories - and five consecutive clean sheets - since the return of Dunga as coach in July.
Although Neymar netted twice in what ultimately proved a comfortable win for Brazil in Turkey, the visitors were forced to withstand a period of sustained pressure before putting the result beyond all doubt when Willian slotted home in the 44th minute.
David Luiz felt the breakaway nature of their third goal perfectly illustrated the way in which Brazil - who blooded three uncapped players in Luiz Adriano, Roberto Firmino and Douglas Costa - have progressed since the World Cup.
"We turned the pressure in our favour," the Paris Saint-Germain defender told TV Globo.
"I’m happy with how the team performed against a difficult opponent, so it was a good debut for the new guys.
"That’s what we must try to achieve now: to grow in each and every game. So, in general, we’re happy with our work. But we must keep our feet on the ground and try to improve in every aspect of our game.
"When you have a goal like this, you’re on the right road to becoming stronger."
Next up for Dunga's men on their Gillette Brasil Global Tour is a meeting with Austria, in Vienna, on November 18.