I think that the opposite is true. To prevent your Capos from plotting together against you,you keep them separate from each other.That way if two or three Capos from different areas are seen meeting together and the Boss finds out from someone other than those Capos,a red flag goes up.
Also if the Capos don't regularly socialize with each other,it's less likely that one will approach another with a possible plot,because he doesn't really know which side of the fence anyone is on.
You don't want the Capos to become too friendly or familiar with each other. The whole idea is to keep everyone guessing so that no one wants to be the first to suggest a move on the Boss.
Gotti's policy of weekly meetings was nothing more than his huge ego being stroked. He even remarked to an underling upon becoming Boss "Now they got to come to me".
As a result of Gotti's stupidity,the FBI was able to observe and videotape guys that weren't even on their radar before Gotti's acension. Before Gotti,a lot of the non-local Capos weren't even known to the Feds.
Then this goofball parades them in front of cameras every week,on schedule.
Christ,the TV listings should have read - WEDNESDAY 8:00 PM CHANNEL 9 - PARADE OF MOB GOONS- Weekly series starring John Gotti. Your favorite stars as well as up and coming new thugs are featured in this new reality show,straight from the fabulous Ravenite.
Joan and Melissa will be live on the Red Carpet with their unique take on Mafiosi Fashion.