Mark Sitley, director of production at Fallon North America, will join Euro RSCG MVBMS in New York as partner and executive creative director of production, the agency announced today. Sitley succeeds former head of production and partner Trish O'Reilly, who was named chief of staff at the agency earlier this year. ... At BBDO/Minneapolis, former ECD Denny Haley has been promoted to chief creative officer. Also, art director Mark Andeer, formerly of Lowe/New York, has joined the agency as VP-group creative director. ... Freelance copywriter Jeff Ross, who has previously worked at GSD&M, The Martin Agency and Leagas Delaney/San Francisco, has joined Euro RSCG Tatham Partners in Chicago as an associate creative director.