In the final days of Gary O'Neil's tenure, an over-emotional squad boiled over in embarrassing fashion in front of the world's cameras.
Jose Sa charged into the South Bank at half-time in the loss to Bournemouth, before Mario Lemina scrapped with his own players and coaches following the defeat to West Ham.
In the same week as the Lemina incident - which cost him the captaincy - Rayan Ait-Nouri and Matheus Cunha both lashed out at the final whistle as Wolves slumped to a loss against Ipswich and fell deeper into their relegation battle.
That loss cost O'Neil his job and Pereira now arrives aiming to restore order to a squad that has lost their way.
As he was unveiled to the media for his first job in English football, Pereira warned his players that he will not tolerate any more outbursts.
"The communication is important and the rules are important," the new boss said.
"We have rules, discipline, tactical discipline and responsibility.