Brazil wasted too many chances against Ecuador and cannot do the same against Haiti, warned center back Marquinhos.
Marquinhos wants Brazil to show more of a clinical edge when it takes on Haiti in its second Copa America Centenario match Wednesday.
Center back Marquinhos started the scoreless draw with Ecuador in the opening Group B fixture, with Miranda missing out through injury.
The Paris Saint-Germain defender is likely to retain his place in Dunga's back line, with the coach not expected to make wholesale changes despite an underwhelming start to the tournament.
But it is the other end of the pitch that concerns Marquinhos, who feels Brazil needs to pose a greater threat in front of the opposition's goal.