NICK SABAN is arguably the greatest college-football coach of all time, leading teams to seven national championships, including his most recent in January for the University of Alabama. He describes himself as a golf fanatic, and during the offseason you can find him working on his 11.2 Handicap Index at the Coral Creek Club in Placida, Fla., or his other retreat, the Waterfall Club in Lake Burton, Ga. Saban and Golf Digest Teaching Professional David Leadbetter recently became acquainted and have become friends thanks to their passion for the pursuit of athletic excellence (not to mention the Hall of Fame instructor might get Saban’s handicap into single digits more regularly). “If his game is a small fraction as good as his coaching ability, he’ll have no problem,” Leadbetter says. We…