Sullivan had served as an assistant women's basketball coach at UNC Wilmington for the last two seasons, working for former UNC women's assistant coach Ann Hancock.
During Sullivan's two seasons in Wilmington, the Seahawks posted back-to-back winning seasons for the first time in 15 years. The team tied the school record with 22 wins in 2002-03, reaching the Colonial Athletic Association championship game.
"I enjoyed my time at UNC Wilmington and I want to thank Coach Hancock for giving me the opportunity to be a part of her staff," Sullivan said in a press release issued by the school. "It is a tremendous program and the athletic department will continue to grow and excel in the years to come. It's difficult to leave, but this is an opportunity I could not afford to pass up."
Sullivan played at Carolina from 1991-95 (he redshirted the 1994 season). He won an NCAA championship ring with the Tar Heels in '93 and also played on teams that went to the Final Four in '91 and '95.
Sullivan served on staffs at Carolina from the 1995-96 season through the 1999-2000 campaign. He originally served as an administrative assistant, but became an assistant coach after former head coach Dean Smith retired prior to the 1997-98 season. Sullivan helped coach the '98 and 2000 UNC teams to the Final Four.