Wonder Ola played up, in addition to Roth's empty promise Donship carrot, how – among others - 1. Michael murdered Fredo's good friend [and mentor] Moe Greene 2. Fredo can't bang cocktail waitresses two at a time! 3. Fredo's kid brother, Michael is the Head of the Family 4. Fredo is being taken care of by Fredo's kid brother