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 Omnicom Set to Cut Up to 3,500 Jobs Chrysler Agency BBDO Believed to Be Most Vulnerable By Michael Bush, Published on December 17, 2008 1 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.