I repeat for thousands times :
I had in my Group some athlete (like Shaheen WR holder of steeple, Nicholas Kemboi 26'30", Ahmed Hassan 26'38", Moses Mosop 12'54" / 26'49" / WR of 25000 / 30000m / 2:03:06, John Korir and Mark Bett 26'52", James Kwalia 7'28" / 12'54") only for remaining in the field of the athletes able running fast in that period, who I know very well were completely clean.
How I know this ? Because we lived together, sometimes in the same room, in St. Moritz during summer 2002 / 2003, and, in the case of Shaheen, many times in different parts of the World.
Apart the case of Shaheen (arguably one of the greatest talent ever in middle distances), the other were top class athletes, but nobody a "phenomen" as, for example, Gebrselassie or Bekele.
So, for what reasons I have to think Haile, or Kenenisa, had to use some doping for running a little bit faster than, for example, Nicholas Kemboi ?
I repeat again : I have knowledge about the fact athletes with top talent can run faster than all people in LR think. And I can say they could run still faster, if had more professionalism and continuity in their training (this is the case of Nicholas Kemboi and Mark Bett, for example).
The fact is that here nobody has the clue that athletes of "medium level" can run, completely clean, about 13' / 13'05" and 27' / 27'20" with proper training and, more important, WITH PROPER MENTALITY.
Mentality that of course cannot have, if everybody thinks not possible running under 27' or 13' or 2:06 without some doping.