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 ANA Members Divided over Implications of Publicis Omnicom Merger Some Concerned About Conflicts and Fewer Agency Options, Others Optimistic Mega Firm Will Boost Media-Buying Clout By Natalie Zmuda, Published on August 01, 2013 3 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.