@,Chin_gigante
Magliocco came up with the plan on his own. The evidence is simple, there isn't anything linking a Gambino or Lucchese to Bonannos regime and during the Bananas war, there was hardly any fighting amongst those families. Last, joe was allowed to live and nobody IMO can make powerful enemies (in a personal fashion) and just get shelved.

Secondly, the whole thing about Bonanno not coming in, is misunderstood. There was an elaborate system of checks and balances, where two commissions members had to be a witness (along with other top guys) to corroborate the meetings occurrences. The people appointed to give this message (Angelo Bruno and Joe Zerilli) were inclined to not get deeply involved and didn't give Bonanno proper notice so he refused to come in because he thought it was a trap. Also considering he had little respect for Gambino, he "gave them the finger" ..... Its very understated how his legal problems play such a big roll in his fall from power.