The Brazilian Football Confederation (CBF) named Dunga, 50, to run the national team after Luis Felipe Scolari's humiliation at the World Cup this month, including a devastating 7-1 defeat by Germany.
Dunga was previously in charge from 2006 until 2010, when he paid the price for World Cup failure -- Brazil were beaten in the quarter-final. He did win the 2007 Copa America and the Confederations Cup in 2009 however after he replaced Carlos Alberto Parreira.
Brazil has a history of giving coaches two tries at the national team. Scolari guided Brazil to a World Cup triumph in 2002 in his first stint. Parreira won the World Cup at USA '94 and then came back for a less successful stint in 2006.
Dunga, a close friend of Gilmar Rinaldi, Brazil's new technical coordinator overseeing a football revolution after the World Cup humiliation, is better known as a player and captain.
He was a pillar of the 1994 world champions though.
His usefulness behind strikers Romario and Bebeto is illustrated by his 91 caps for his country after making his debut in 1987.
Dunga skippered the under 20 side to world success in 1983. By 1989, he was an established figure, having won the Copa America -- though his tough style sat uneasily with fans who pointed to a poor 1990 World Cup when Brazil were beaten by Argentina in the second round, as 'proof' of his ineffectiveness.
