SETH WINTER has been named senior vice president, sales & marketing, NBC Universal Sports & Olympics. Winter most recently served as vice president, sales for NBCU Digital Media, overseeing Internet and broadband sales for NBCU's expanding digital media efforts.

Wieden+Kennedy New York has named LESLIE STONE as head of strategic planning. Stone is tasked with managing the current and continued growth of the planning department. Stone joins Wieden from Ogilvy and Mather, where she served as senior partner and worldwide planning director. She oversaw strategic development for brands including American Express and the Tribeca Film Festival.

DIC Entertainment has promoted LEILA PIRNIA to vice president of global brand management. Previously, Pirnia served as vice president of strategic planning & business development.

STEVEN BARTH has joined the Online Services unit of MediaSpan as executive vice president and SHAWN DUFFY has been appointed vice president of sales for MediaSpan’s Media Software unit.

The VIA Group announced that DIANE SYSTROM joined the company as a principal and group strategy director. In this new position, Systrom will be responsible for managing VIA's Boston office including accounts such as HP Hood and Monster.

Wirestone has added BRAD JOHNSON as managing director in the San Diego office. Prior to joining Wirestone, Johnson spent 11 years with Young & Rubicam in Irvine, Calif.

KATHLEEN GEHRING CARINO has been promoted to senior vice president / director of client services from senior vice president / account director at Gearon Hoffman.

Phillips Design Group has promoted RICH OFSTUN to senior director of business development from director. Ofstun is responsible for all new business activity for the firm.

ALLISON CORN and CHRIS BRYSON have been named executive producers of Lion TV USA.

AvPro Worldwide has named MARTY ALLEN as vice president of sales.