You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract FIVE QUESTIONS FOR ZENITH PRINT BUYER STEVE GREENBERGER Media Buying Veteran Moves Over To Research Firm DJG Marketing By Nat Ives, Published on November 14, 2005 0 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Become a Member Already a member? Log in.