Execs & Accounts: David&Goliath, Arc Worldwide, PointRoll

David&Goliath hires former Doner, Saatchi & Saatchi creative. Napper Tandy was named associate creative director of the Los Angeles-based creative agency. Tandy was most recently a creative director at Doner, and began his career at Saatchi & Saatchi as a copywriter and moved up to associate creative director at the agency.

Leo Burnett agency Arc makes a C-level appointment. William Rosen was promoted to president and chief creative officer of North America of Arc Worldwide. He will be responsible for the creative product across all Arc disciplines including digital, direct, promotion, and retail marketing. He oversees creative development, planning, and execution for clients including McDonald's, P&G, Coca-Cola, United Airlines, Nestle Purina, Whirlpool, and MillerCoors.

PointRoll expands its West Coast operations. The Gannett subsidiary and rich media technology solution provider hired two former PointRoll executives. Ray McIntosh returns as sales director, West Coast, and Chris Baughman as AVP creative strategy. Dana Summers was named to the role of account executive, Pacific Northwest, and Rhiannon Ubelhor was hired as account executive, auto in Los Angeles.

Mobile marketing agency Grand Slam Mobile selects Air2Web. Air2Web will provide carrier connectivity and support on Grand Slam's SMS, MMS, and premium campaigns.