Five months after Interpublic's Mediabrands unit opted to keep much of its data processing services with long-time provider Donovan Data Systems, another Interpublic unit, Draftfcb, Wednesday
announced a multi-year agreement with DDS rival MediaBank's O/X digital buying system. Draftfcb's media-buying teams in New York, Chicago and other key markets will utilize the system to manage their
digital media buying, the agency said.