There really wasn't a Giancana's guy versus Accardo's guy. When Accardo was boss he took Giancana with him everywhere. They were close. When Accardo retired, he and Ricca agreed on putting in Giancana. The same goes for the other bosses. Ricca and Accardo were best friends and did things by agreement, and included the capos in the decision making process. When Cerone was busted, he was visiting Ricca. Sometimes there was rivalry between SOME of the members, like the previous poster wrote, but more often than not they got along and worked together. Many members of different crews had business deals together. That was actually encouraged. When differences existed it was more of a personality difference or if someone was resisting the will of the bosses.