Simon Worldwide (formerly Cyrk, Inc.) announced that co-ceo Allan Brown would assume all ceo responsibilities following the resignation of co-ceo (and Cyrk co-founder) Patrick Brady. Also resigning were cfo Dominic Mammola and executive vp Ted Axelrod.

Aspen Marketing Group, Los Angeles, named Thomas Breslin president and ceo to replace Neal Vitale, who resigned in April. Breslin had been chief operating officer.

Coactivity.com, a division of CoActive Marketing Group, Cincinnati, named Doug Williams senior software designer, Jennifer Faz interactive producer, Jim Keller interactive designer, Hans Wald senior software engineer, and Greg Wineman Web developer.

Momentum, St. Louis, named Deno Syrios president of its Atlanta and Cincinnati offices.

Heather Anderson promoted to director of sales promotion at BDS Marketing, Irvine, CA.

ThompsonMurray, Fayetteville, AR, named Cameron Clement associate creative director.

Adamson, Inc., St. Louis, named Dave Gutting vp-advertising account supervisor, Robbin List print and project manager, Barb Montanye senior art director, Cherie Burroughs and Kevin King copywriters, and Jo McDonald administrative assistant.

Tom Kettler named creative director at Einson Freeman, Paramus, NJ. Also, Don Williams named creative director at the agency's Chicago office.

Laura Davis promoted to management supervisor at 360 Group, San Rafael, CA. Also, Amy Farrell named senior account supervisor and Cyndi Colzani studio artist.

Southfield, MI-based Mars Advertising named April Aftanas strategic business manager, Jessica Bentley legal liaison, Marybelle Phan, Marina Reyna, Mary Ronan, and Kristin Wesolek account executives, Patrick Robbins marketing associate, and Brittney Yuille assistant marketing associate.

Judy Williams named director of human resources marketing at August Associates, Inc., Wheaton, IL.

Russ Reid Co., Pasadena, CA, promoted Duke Smith to vp of its Canadian office.

Jenny Lee Arnold named director of traffic at Gish Sherwood & Friends, Nashville. Elsewhere, Jane Fuentes-DeFerbrache named p.r. account executive.

Marketing Images, Waukesha, WI, named Sandra Wysocki director of marketing. She will be responsible for marketing support for existing clients.

DVC Group, Morristown, NJ, named Liane Dobson vp-account supervisor for its DVC ActiveCare division. Elsewhere, Joanna Sanchez and Robyn Caputo named account executives, John Finnerty financial analyst, Michael Pittard senior interactive director, and Elaine Fraim promoted to director of administration.

Michelle Berg named vp at Velocity Sports & Entertainment, Westport, CT.

Gary Warech named vp-business development for sponsorship consulting firm The Exordium Group, Cupertino, CA.

Wilton, CT-based Brann Worldwide named Ray Rosebaum chief strategic officer of the company's Dallas office, Brann Forbes. Elsewhere, Ken Shearer named executive vp-general manager of Richmond, VA-based Brann Data.

Malone Advertising, Akron, OH, named Fred Siegel director of marketing and Greg Bukosky associate creative director.

CMI, East Rutherford, NJ, named Mark Kirby managing director. He will oversee the consulting practice.

Elizabeth Gold named director of event design and production at GMR Marketing, New Berlin, WI.