George Foreman doesn't retire in '77
What if George Foreman doesn't retire in 1977? He gets Eddie Futch to train him instead. Can Futch fix Foreman's shortcomings as a boxer the way that Emanuel Steward fixed Wladimir Klitschko? Would better management and training have made Foreman as good as Holmes or Ali? You have to remember that Ali's trainer was ATG Angelo Dundee whereas Foreman's was Dick Sadler, so maybe that made a difference in Zaire. I feel that if Foreman had the level of training that Ali or Holmes got he gives a much better showing of himself and the heavyweight scene from 77-87 is very different.
These are the Holmes golden years. Does he even get one if Foreman is still around? Does Holmes fight a war with Foreman, the way he does with Norton and then never give him a rematch? What happens?
Let's add one more wrinkle to this plot. Teofilo Stevenson turns pro and gets Lou Duva for a trainer. This era now has Holmes, Foreman, Norton, and Stevenson. Is it as good as the 90s with Lewis, Holyfield, Tyson, and Bowe or the 70s with Ali, Frazier, Foreman, and Norton? Holmes and Foreman fight them all. How do they do?