Brazil face a summer of reckoning.
Just a year on from their mediocre showing at the 2015 Copa América in Chile, the Seleção will attempt to redeem themselves at the special centenary edition of the competition. It's an opportunity to restore some much-needed belief at a major tournament after recent disappointments and to build momentum ahead of crucial World Cup qualifiers in September.
Yet circumstances have contrived to complicate things. The Copa is competing for attention with the Olympic football tournament, which kicks off in August, and injuries and other personnel issues are threatening to derail Dunga's plans ahead of his side's opener against Ecuador on June 4.
For ESPN FC, I have picked out five questions that need answering as Brazil head into the gauntlet.