The series of events, seemingly outside of Ms. Amorim’s control, painted a picture of a club that lacked discipline, and it fueled sexist notions that a woman could not manage a Brazilian soccer team, especially one as beloved as Flamengo to its estimated 35 million fans.

“She had all the bad luck she could think of,” said Ruy Castro, who has written a book about Flamengo.

Rumors that some club members wanted to impeach Ms. Amorim began circulating in the media once the beleaguered Flamengo soccer team  which had won the Brazilian championship in 2009  began losing games and had trouble filling the stands.

A seasoned competitor, Ms. Amorim, 42, tried not to curse her misfortune.

“Sometimes we think something is just so horrible that there is no light at the end of the tunnel,” she said. “But you might have been lucky to go through all that because you can turn it around even faster.”

In soccer-obsessed Brazil, there is no team more popular or with more history than Flamengo, which is based in Rio. What began as a team that was followed by the elite grew into the club of the masses, rising in popularity during the early days of national radio broadcasts in the 1930s, when Rio was still the capital of Brazil.