It is said that Giancana hated both of these men. I believe he thought Aiuppa to be incompetent, and I'm not sure what exactly he didn't like about Cerone, but it is documented that Mooney did not like him. Just interesting because at a point, Giancana was arguably one of the most powerful Mafiosos in the country, and immediately after his death, Cerone and Aiuppa ended up being at the top of the hierarchy. Obviously Mooney didn't hand pick them, but its ironic. Curious if there was a reason these two men were not well liked by Sam.