AvatarLabs named Michelle Naden as director of strategic initiatives.

Mediacy hired Dan Leitzell as national sales manager. Leitzell previously served as account executive at Titan Worldwide.

TBWA Worldwide named Gary Wenzel as president, TBWA/WorldHealth. Wenzel was previously chief operating officer of TBWA/Hakuhodo in Tokyo. In addition, Steve Pashkoff joined TBWA/WorldHealth as executive creative director.

Steve Morgan joined Y&R South Africa as creative lead on the agency's biggest account, Pick n Pay.

Vic Palumbo was named senior vice president, director of integrated production at Deutsch LA. Palumbo was most recently at Fallon, Minneapolis as director of integrated production, managing production for clients such as Travelers Insurance, BMW, Alamo and National Rental Car, Virgin Mobile and Purina.

Discovery Communications promoted Todd Zander to vice president, digital media distribution. Previously, Zander served as director, digital media distribution, where he built partnerships with mobile distributors, service providers and developers.

AudienceScience promoted Dan Hurwitz to vice president of sales, east.

Azar Hafizi joined 47 Media as director of business development. Hafizi most recently served as associate director of media strategy at Glam Media.

Nick Barham was promoted to co-executive creative director of Wieden+Kennedy Shanghai. Barham previously served as the director of W+K Shanghai Planning and is the first planning director in W+K history to be promoted to a co-executive creative director position.

BUZZMEDIA hired Chris George as senior vice president of integrated marketing & operations. George joins from MySpace, where he served as vice president, integrated marketing.