OLSON named CHRIS LAWRENCE account director and vice president. Lawrence joins the agency from Fallon, where he was most recently a group account director.

T3 promoted KATE DONAHO and CHRIS WOOSTER to group creative directors.

ScanScout hired TOM BOSCO as director of sales, East and WILMA MCDANIEL as director of marketing.

COLLEEN CALLINAN joined Centro as account executive in the Chicago office.

The Hollywood Reporternamed ROSE EINSTEIN as vice president, associate publisher. Most recently, Einstein was vice president, advertising sales for Netflix.

R/GA hired LUANE KOHNKE as managing director of data intelligence. Most recently, Kohnke was senior vice president, strategic services at Wunderman New York.

MARK SANDERS was named chief financial officer, North America at Mediaedge:cia. Prior to joining MEC, Sanders was chief financial officer at Initiative US.

OLSON named TROY LONGIE as creative director. Longie joined the agency from mono, where he served as creative director for brands such as Sesame Street, General Mills, Hitachi Global Storage Technologies and PBS.

WENDA HARRIS MILLARD, most recently the chief sales officer at Yahoo, has left the company to take on the role of president of media at Martha Stewart Living Omnimedia.

JOHN GEOGHEGAN was named executive search consultant for Bialla & Associates.