Attempting a move into the long jump would see Bolt join the likes of athletics legend CarlLewis and Jesse Owens, as sprinters with the capacity to thrive in jumping events.
The time -- the second fastest in history -- was a new Olympic record and Bolt had achieved what only CarlLewis had before: to have won gold medals twice in the event.
Lemaitre became the first white man to run under 10 seconds when he clocked 9.98 seconds in Valence earlier this month, and at 21 has already run faster than both Asafa Powell and CarlLewis at the same age.
Mr. Logan had commissioned a study, including help from Olympic legend CarlLewis, to find out why the U.S. track and field team won only 23 medals in Beijing and to set up strategies to win more in London.