March 4, 2010 — Merkle has named Mark Weninger chief creative officer  of the Columbia-based customer relationship marketing agency. Prior to Merkle, he served as managing partner and chief creative officer at the Minneapolis office of OgilvyOne Worldwide. Before that time, he was executive creative director at Wunderman/Young  Rubicam, New York, and prior to that served in the same role at Carlson Marketing Worldwide, Minneapolis.  He has been named an Outstanding Practitioner of The Creative Arts, and has been recognized by Advertising Age, The Mobius International Advertising Awards, The International Echo Awards and The New York Festivals Advertising Awards.