I've always found the statement from morena about Arcadia,Mucci and cotroni Jr bs.
Arcadi wasn't released from jail until Mar 2017.
Cotroni Jr has no influence in MTL going back probably to the 2004 death of his father. There is no evidence of the cotroni family holding any influence or power since SRS death.
Mucci is a possibility his allegiance during the MTL war has been a ??
Mucci was a longtime member of Paolo violis inner circle so that would make sense.
Also Arcadi is a Rizzuto loyalist and imprisoned or not would not be allied w/ the violi bros.