I don't think Dellacroce gets enough "credit" for tacitly encouraging the insubordination of guys like Gotti and Ruggiero. I feel the writing was on the wall that once he passed away Gotti was going to lead an insurrection against Paul, and he did little to nip it in the bud. I don't get how he's portrayed as loyal to Castellano and the boss is the boss mantra.

I think it would've been wise of Castellano to undercut Gotti's growing power by taking out Dellacroce first. I know that probably wasn't feasible for a few reasons, but Dellacroce was hardly that integral to the Gambino's earning power as they tried to become more "legitimate".