North Carolina now faces the challenge of finding Roy Williams’ successor. The Hall of Fame coach is retiring from the Tar Heels’ storied men’s basketball program. That opens the job for the first time in nearly two decades. UNC athletics director Bubba Cunningham says Williams will input in the process to hire a new coach. Cunningham called the opening “the best job in college basketball” but there is no exact timetable for hiring a new coach. Williams won three national championships in 18 seasons with the Tar Heels. That followed a 15-year run at Kansas.