FYI, Zero, I copied this bio info on Dr. Daniels from:http://running.syr.edu/column/19990913.html
"A two-time Olympian and medalist in the modern pentathlon, Daniels turned his attention from competition to research in the early sixties. In the years that followed, he worked with a number of elite athletes, from milers Jim Ryun and Mary Slaney, to marathoners Joan Benoit and Jerry Lawson. He applied his findings into a successful training system at Cortland, credited with 8 national team championships, 25 individual titles and 110 All-America runners."
While he didn't directly coach all of those runners leading up to Olympic games, he has obviously been a big influence for decades. Many other successful runners, including Olympian Rod Dehaven, have self-coached using Daniels' Running Formula.
BTW, gang, if you haven't seen it, the 2nd edition DRF is really great. He really reworked the whole thing and made it even better.