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 Six Big Accounts to Watch Amid the Publicis Groupe Merger Fallout The Pieces of Business Most Vulnerable Due to the Deal -- And Rivals Are Already Circling By Ad Age Staff, Published on August 05, 2013 2 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.