With the benefit of hindsight, I would have a lot of sympathy for Greg, I dont agree that EPO was the definitive reason for the decline of LeMond as Andy Hampsten was miles in front of LeMond in 92/92 and he was supposedly clean. It undoubtedly played a part though. Scottish rider Robert Millar once labelled him the John Wayne of cycling which I feel may have had deeper significance than originally intended.
I heard an interview with Hampsten a little while back and, while he doesn't mention doping, he does say that he noticed peleton speeds changed dramatically around that time. He was talking about it more along the lines of why guys stopped going for the Giro and Tour double but it's hard to not notice the timing.