CUMULUS MEDIA announces that it has appointed Tammy O’Dell as Vice President/Market Manager for Cumulus Columbia, SC. The appointment marks a return to Cumulus for O’Dell, who was formerly Vice President/Market Manager for Cumulus-Charleston, SC.O’Dell has over 16 years’ experience in radio broadcasting management and sales, and was most recently Local Sales Manager for Spectrum Reach in Cary, NC. Prior to that,