The player drain from South America has been highlighted by the latest round of Libertadores matches.
The Libertadores Cup is the showpiece of South American football but, as the Panama Papers reveal, it has also been the source of huge corruption.
Manchester United, who claim to have 7 million fans in Brazil, are leading the Premier League's push for global domination in South America.
Dunga could be the latest coach to go after two draws left Brazil in sixth place in the marathon World Cup qualifying campaign
Injuries notwithstanding, Ecuador continue to set the pace in the race to the World Cup finals.
The popularity of football in Brazil owes much to Rio's Fla-Flu derby.
The strengths and weaknesses of the Copa Libertadores have been evident in the early stages of the 2016 edition.
River Plate and Soa Paolo meet next week, and for one of them it could mark the end of their Libertadores Cup campaign before it has really begun.
Few people had heard of Marlos Moreno before last week, but that has now changed.
With Carlos Tevez back on form, the pressure on Boca Juniors coach Rodolfo Arruabarrena has eased.