If you have Richard Daley on your side do you really need someone like Sam Giancana? Only one of them had REAL power. And most people who believe this myth ignore the "giggle" line.

Besides Kennedy would've won even without Daley and his votes!

As for Castellano I think he accomplished what he wanted during his run. The Gambinos became a business enterprise and, more importantly, his family (blood family) became businessmen. Gotti ruined the Gambinos afterwards but not the Castellanos.