Tatum returned to Hawaii for good in 2001. In addition to his community service, he has held key executive positions for Marriott to help build and expand its brand in the Hawaiian Islands. Prior to his current position, Tatum served as general manager of the Renaissance Wailea Beach Resort on Maui, the JW Marriott Ihilani Resort & Spa at Ko Olina, and the Waikiki Beach Marriott Resort, where he also earned Marriott's General Manager of the Year Award.