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 Havas Chief Talks Outsize Game, Takes on Ad Giants At 44, the Tweeting, Facebooking David Jones Is the Youngest Holding Company CEO -- and Sees Big Future By Rupal Parekh, Published on March 14, 2011 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.