CHATTANOOGA, Tenn.--(BUSINESS WIRE)--Unum (NYSE:UNM) has promoted Vicki J. Gordan to senior vice president and chief internal auditor. The role was previously held by Matt Royal, who was promoted to chief risk officer for Unum Group in July. Gordan will assume her new title today, but will transition over time from her current responsibilities as vice president and chief financial officer for Unum’s National Client Group. Gordan has had a varied career with Unum that spans more than three decad