Renato,
Have you considered extending an invitation to coach Kenenisa?
According to the Letsrun coverage from today, he is questioning his training...what better time to make contact? I think he'd be foolish not to heavily consider such an offer. You already seem to have supreme confidence in his marathon ability ("By two more marathons, [Bekele] will be under 2:03"), so it seems like a worth endeavor for you. I think that if you whipped him into marathon WR shape it would absolutely cement you as one of the coaching GOATs.
Sincerely,
A slow white guy