Add Doc Sadler to college basketball's one-and-done fraternity. The one-season Fred Hoiberg assistant will be announced at noon Thursday as Southern Mississippi's new men's basketball head coach. "We've hired one of the great coaches, and a perfect match for Southern Miss," Golden Eagles athletic director Bill McGillis said in a story posted on the school's website. "He is regarded as one of the great coaching minds and recruiters in the country." Sadler will replace Donnie Tyndall, who left last week to accept the head coaching position at Tennessee. Brad Underwood was expected to get the Southern Mississippi position, but opted Wednesday afternoon to remain the head coach at Stephen F. Austin.