Ronnie Jarrett & Frank Schweihs didn't have crews of 8 men working under them. They were work guys, associates. Soldiers. Nothing more. They answered to made guys, they weren't giving orders to anyone.

Marco D'Amico is a peculiar situation.

Nick Calabrese would have no idea who all the made members were in the Chicago Outfit. Not in his prime, and certainly not during the time period in which he snitched. There isn't an annual membership booklet/yearbook publication for the Chicago Outfit.