Former Knicks coach Larry Brown, who bounced back and forth from the NBA to college during a Hall-of-Fame career, is Calipari’s longtime mentor and speaks to Calipari a couple of times a week. Brown doubts the 61-year-old Calipari would throw his hat in the ring at the last minute and upend the Knicks’ coaching search, in which Tom Thibodeau is the heavy favorite.