Similar sitation occurred in Chicago during Prohibition and even before that. In fact from the 1910s until the late 1920s a lot of non-Sicilian gangsters arrived from Brooklyn to Chicago, including Torrio, Vanella, Esposito, Capone, Volpe, Campagna, the Fischettis etc. By 1931 Capone tookover the Sicilian Mafia in Chicago

He who can never endure the bad will never see the good