Sugar Hill absolutely did change Fury in a few months. That was quite evident by the massive size and style difference when he came into the second Wilder fight. Plus it's too soon to confirm him as a fraud when he's only really getting started.
Haye was not a great fighter before he hooked up with Booth, he got sparked by Thompson and never faced an elite fighter at cruiser.
Dave Coldwell on the British scene maybe. Look at what he did with David Price against Hammer, and McDonnell against Inoue for example.
Teddy Atlas. Fighters actually decline working with him. Gvozdyk - broken down and stopped, is now retired. Povetkin - looked like a top HW before Atlas, went downhill during that time, then came back after Atlas left Michael Grant - Atlas ruined him. Moorer - had one good fight, then got KOed by an old man next fight with Atlas yelling and distracting him. Listen to what Foreman says in this video: This content is protected Grant was much better with Don Turner: This content is protected
What about the Reynoso's LOL Who else have they had but the Ginger One?? They let him pop dirty for Ped's (clenbuterol) & what was ironic The whole family are BUTCHERS !!!!!! lol
How about Capetillo who use to put cement on Margarito hands? And Margarito claimed that he didn't know what Capetillo was putting in his hands
I think Able Sanchez was perfect for GGG and turned him into the fine tuned destruct and destroy type fighter he is. He turned him from a not so exciting former great amateur fighter to what GGG is known for today, GGG is synonymous with highlight reel KO'S and elite level skills power and chin. If one fights GGG they're in for a rough night.
Eddie Reynoso... He's got Ryan Garcia whose a weight bully twink at 135 and Canelo whose a cherrypicking judge buying match fixing fraud..