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 Why Allstate Doesn't Test Its Ads Top Marketer Lisa Cochrane Tells ANA Attendees What Made 'Mayhem' Work By E.J. Schultz, Published on October 12, 2012 6 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.