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 Coca-Cola Preps Two Versions of Super Bowl Ad Execs Will Be On-Site at NBC During the Game to Decide Which Spot Will Run By Natalie Zmuda, Published on January 26, 2012 9 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. Register Now Already a member? Log in.