LEXINGTON, S.C. - Southeastern Freight Lines, the leading provider of regional less-than-truckload (LTL) transportation services, today announced that Justin Proffitt has been promoted to service center manager in Wichita Falls, Texas. Proffitt has more than seven years of experience at Southeastern’s service center in Charleston, South Carolina. There, he held a variety of roles, including pick-up and delivery driver, driver mentor and pick-up and delivery dispatcher. Most recently, Proffitt served as assistant service center manager. “In his time with Southeastern, Justin has performed in an excellent manner where he ensures quality and culture comes first,” said David Turner, regional vice president of operations for Southeastern. “We are confident that Justin will experience continued success in his new role, continuing to be a great ambassador for our organization.”