Dirk Rients has joined Draftfcb Chicago as management director, mobile platforms. He will guide clients and internal partners in the design of effective mobile programs while identifying growth opportunities. Rients joins Draftfcb from Punchkick Interactive, where he was the design firm¿s director of business development and mobile strategy with clients including AT&T, General Motors and UPS. Before that, he was digital strategist and business development director for JWT Inside. He also worked at CareerBuilder.com and was a founding member of The Heartland Mobile Council, a Chicago-based non-profit for the advancement of mobile marketing.