Coupla questions:

Would Gotti still have had Castellano killed if:

If Castellano had made Gotti his Underboss (with Tommy Gambino serving as co-Underboss) and attended Mr. Neil's funeral.

Or, if the above didn't happen but Roy DeMeo and his crew were still alive/active?

Lastly, were there any guys in the Family personally opposed to Gotti taking out Castellano, any guys who liked him, but didn't rise up against Gotti for fear of being killed too?