What would Vito have done? If...

Vito was invulnerable having beefed up his security after “his decision not to accept Sol's deal” and Sollozzo couldn't get to Vito

Michael had gone back to college

Fredo was well Fredo....

Connie in her abusive marriage with Carlo and Vito's inaction to Connie's plight

Sonny, Don in training, gets killed same scenario