Zambezi promoted Ben George and Nick Rodgers to creative directors, up from associate creative directors. They partnered at Zambezi in 2014 when George was hired by the agency to work with Rodgers on TaylorMade Golf. Together, the pair won a competitive pitch for Autotrader and Kelley Blue Book, and recently led Autotrader's millennial-themed ad campaign. George joined Zambezi from Saatchi & Saatchi Los Angeles where he was a writer on Toyota, and prior to that worked at CP+B Boulder on Burger King, Sprite and Volkswagen. Rodgers previously worked at Daily & Associates in L.A. and before that Goodby Silverstein and …

MRM//McCann promoted Ariana Stolarz to global chief strategy officer, up from global director of strategy. Early in her career, Stolarz worked across Latin America and then in the U.S. as the digital strategy leader, both at major general-market and Hispanic agencies. She joined MRM//McCann in 2013, leading the U.S. East (New York and Princeton) strategy team, and was promoted two years later to global director of strategy while working on global assignment out of the London office. "Throughout Ariana's U.S. and international agency career, she has developed smart brand strategies focused on understanding consumer behavior as it relates to the …

Perfect Fools continues to expand its creative team with Emil Jonsson joining as art director. In this newly created role, he will apply his creative skills across all the agency's clients, including Kronans Apotek. He will report to creative director, Klas Lusth and be based in Stockholm. Jonsson joins from Honesty Stockholm, where he worked since 2011 on campaigns including INGO, Riksgälden, Scandic Hotels and H&M. Prior to Honesty, Jonsson worked at agencies such as Ester Stockholm, John Doe Worldwide Stockholm, Goss Gothenburg and ANR BBDO. Jonsson's appointment follows the recent additions of copywriter Magnus Ivansson and strategy director Rasmus …

MDC Partners named Lotta Malm Hallqvist as the company's first managing director, chief marketing officer in Europe. She will report to Bob Kantor, chief marketing and business development officer at MDC. Malm Hallqvist joins MDC from Cheil Worldwide, where she most recently served as president, global chief growth officer. While there, she led a number of collaborative new business wins spanning Cheil’s worldwide agency network, which includes the Barbarian Group and Iris Worldwide, bringing in work from Ethiad Airways, Abbott Pharmaceuticals and CZ Cussions’ personal care business. Malm Hallqvist began her career in the agency business as co-founder of Propaganda, …

Jason Corbin joined Dagger as creative director.

Slim Pictures hired Pegi Murray as director of business development.

Alexandra Klima joined Cronin and Company as a digital and analytics strategist.

DeVries Global promoted Jessica O’Callaghan to regional managing director, North America.

Young & Laramore hired Sam Hanes as associate account manager and promoted Dan Shearin to senior art director, Kyle Nordsiek to art director and Will Calderwood to account manager.

Yummly named Tom Borsellino as head of sales.