President and owner of Verso Advertising Denise Berthiaume will give up day-to-day management responsibilities for the agency to become chairman and owner as of October 1. Longtime Hachette Book Group svp, advertising Martha Otis will join Verso as president on October 1. (Hachette hired an outside firm late last year for the first time in over 20 years to handle media buying and some creative development.) Another Verso veteran, vp and managing director Michael Kazan will be retiring after 10 years with the agency. Berthiaume says in the announcement, “Martha possesses the perfect match of experience and drive to lead the agency […]