Brazil legend Ronaldo has claimed that the nightmare of La Selecao's World Cup exit has not been forgotten – despite a six-game winning streak since the tournament ended.
Dunga replaced Luiz Felipe Scolari after the Brazilian competition, and the former captain has since led the five-time world champions to six straight wins - the latest coming via a 2-1 victory over Austria on Tuesday.
However, Ronaldo, who won the World Cup twice with Brazil, has stated that the nation have not fully forgotten about their humiliating 7-1 defeat by Germany back in July.
He told Reuters: "It is too early to see any change in the national team. It was very difficult to forget the World Cup and the defeat to Germany.
"I know that Dunga has a very difficult job to do to bring confidence back to some players and their work."
Dunga captained the side to the 1994 World Cup.