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 Can Relentless LeBron James Coverage Sell a New National Sports Magazine? Sports Lifestyle Title From Founders of The Source Will Include 20 Pages of Heat Coverage Every Issue By Nat Ives, Published on July 23, 2010 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. Register Now Already a member? Log in.