Here is the short list: - lack of motivation - lazy .. didn't commit himself to training = rather go to strip clubs = his opponents saw right thru him and were no longer intimidated = he lost confidence in himself
Haven't gone through the whole thread, but I really think losing Jimmy Jacobs was the last straw. He could have hung on and kept out of trouble had Jacobs not died. So it was a combination of losing Cus/Jacobs and firing Kevin Rooney. That's when the snakes moved in.
Wouldn't say its as clear cut as that. Tyson was still dangerous in 91, its arguable he had enough to beat the smaller holyfield. He did some devastating work against ruddock with those combinations when you watch closely and was able to take some massive punches himself, id argue not many could have hit tyson much harder than that. Lewis before steward loses, holyfield possibly does with his brawling but might win a rematch. Id agree bowe would be his biggest challenge, he might well lose that. But its not a case of, yep tyson loses flat o everyone imo.
I think he was on a different physical trajectory to the average. At the age of 12 he had the body of a strong 19-year-old. When he was 18 and turned pro he was as well-developed as a 25-year-old. When he was actually 24, I think his physical age may have been about 30. So that was part of it. Not living correctly and neglecting his training was also a huge factor. Plus, I strongly suspect (due to his bulk and quick jerky style of movement) he might have developed back problems early on which reduced his ability to be elusive and operate his excellent defense and deliver his ferocious power from a bewildering range of angles. Combination of the above is my guess.