The reason Bekele, Kipchoge, Geb, Lagat, El G, etc. were able to stay at the top of the world for years at a time is because of their intelligence, in regards to training and a long-term approach. In the recent Flotrack vid, Chelimo isn't just there to do whatever his coach says, he has an idea of how his repeat 800's workout will fit into an upper trajectory, and he expresses this. He's a man on a mission. "Go hard, or suffer for the rest of your life." Chelimo is the newer, better Prefontaine.