McCullough played professionally from 1996-2001 for the Cincinnati Bengals and Philadelphia Eagles, the CFL’s Winnipeg Blue Bombers, and the XFL’s Chicago Enforcers. Following his playing career, McCullough worked in education at the high school level as a teacher, head football coach, athletic director, and certified principal.
Deland and his wife, Darnell, have four sons, Deland II, Dasan, Daeh, and Diem.