Boxing wise,Tyson had the perfect set up with Jacobs an Cayton as his managers an Rooney as his trainer. d’mato might have started an set the motion in place for the young Tysons rise to the top but he was already 107 by then an Tyson was lucky to have Jacob an Cayton as his managers as they were hard nosed businessmen who also knew the boxing game an were experts in marketing an promotion. Rooney was also able to carry on an try to refine with Tyson the teachings that he also learned from the old man but couldn’t use successfully himself when he was still fighting before he was just a limited clubfighter
Carlos Monzon, trainer Amilcar Brusa used to scout all of his future opponents prior to Monzon's title bouts, then a game plan was implemented. Brusa trained 14 world champions. Tito Lectoure was his manager, set money aside from each bout so that his fighter would not need to return after retirement.
For Manila Frazier had Eddie Futch George Benton Milt Baily Willie Monroe Holy and the other Olympians had Benton Duva Ace Murata
Mike tyson for sure... cus damados connections were simply amazing. (Not talking about the team don king put together.)
Lomachenko maybe? Papachenko in his corner and the massive Top Rank push he had to manoeuvre him into title fights against unranked opponents to try get him the record for fastest to win a title and make him look special. Mickey Walker had a pretty good team with Jack Doc Kearns as his manager getting him good fights and also ringing bells early to get him out of trouble a couple times I think. Bill Bloxham was a pretty good trainer too I think for Walker.