Coleman probably shouldn’t have competed in back-to-back races while rehabbing, but he doesn’t see limitations. Never has. That’s why one afternoon, the summer before heading off to college at the University of Tennessee, while hanging out with some friends at the house of his former high school coach, Mark Tolcher, Coleman declared that he was going to sprint down the driveway, past a downward slope and clear Tolcher’s 20-foot-wide pool. Coleman was a dominant long-jumper at the time. He was also out of his mind.