Dunga revelled in the positives after his Brazil side ended their short London tour on Tuesday with a second successive victory, 2-0 over Wales, and a clean sheet from their two friendly internationals.
The teams Dunga put out, starting with Saturday's 3-0 win over arch-rivals Argentina, were almost entirely different and he emphasised the desire of the whole squad to play a part.
"We gained a lot from these games, on and off the field. The players showed great motivation and there was a very good atmosphere in the squad," said Dunga, unbeaten in three matches in charge starting with a 1-1 draw in Norway last month.
The new Brazil coach said he was happy with the way his team had performed against two quite different sides.
"I was pleased with the way in which the team played. Argentina also play, Wales close up and don't leave much space," he said. "Argentina played a more open game, it was nicer to watch. Wales were more cautious."
He said that against the Welsh, his team had improved their movement out of defence and from dead-ball situations.
IMPRESSIVE MARCELO
Dunga added that he was not surprised 18-year-old left back Marcelo, winning his first cap, had scored the opening goal and generally played an impressive match.
"Some people were surprised when we called him up but we could see his qualities. He has personality in training and matches," he said of the Fluminense player who could have had a second goal but for a good save by Paul Jones.
"He's always smiling but he's very determined."
Wales coach John Toshack, fresh from a disappointing 2-1 loss to the Czech Republic in their first Euro 2008 qualifier on Saturday after a last minute goal, was pleased with the workout.
"For an hour or so we were in a good match," he said.
"If I'm going to be critical, some of the lads could have taken their chances but they (Brazil) are a very good side," he added, making allowances for his team's failure to score.
"We did create chances but the problem is still putting the ball in the back of the net."