Amy Tunick was named president of Alliance, the entertainment and lifestyle marketing agency of Grey Group, based in New York. Tunick succeeds John Eckel who left the agency.

TM Advertising named Holli Burlison manager of creative services. Burlison is expanding her role as an agency art buyer and creative recruiter to also include managing and coordinating the agency's creative and production resources.

MediaTrust has acquired Bardon Advisors, naming Keith Cohn, Bardon founder & CEO as president of the combined entity.

Dieste Inc. has hired Gavin Twigger as executive director of interception and Luciana Gomez as executive director of brand leadership.

Saatchi & Saatchi New York hired Conway (Con) Williamson as chief creative officer in its New York office. He will partner with Mary Baglivo, CEO at Saatchi & Saatchi New York and CEO & Chair, Americas. Williamson was previously chief creative officer at Euro RSCG New York.

Kathryn Szumowski joined Turner Broadcasting System as senior media director for Turner Media Group, TBS, Inc.'s internal media group. Most recently, Szumowski was senior manager of digital and multicultural media for Verizon Wireless in Atlanta, overseeing digital campaigns for product launches and programs, including Droid and VCAST.

ZenithOptimedia promoted John Taylor from director of client service to chairman of ZenithOptimedia Worldwide.

PETROL hired Andrew Harris as vice president of brand development. He recently served as brand integration architect for Sony Pictures Entertainment.

Colle+McVoy promoted Brian Ritchie to associate creative director; Joe Monnens to associate creative director; Amanda Bastian to account supervisor; Liz Wawrzonek to associate account planner/social media strategist; Andrew Wetzel to interactive designer; and Chelsea Chung to assistant account executive.

Matt Ryan, global chief marketing officer of Euro RSCG, has been promoted to president of global brands for Euro RSCG Worldwide and global chief marketing officer of Havas Worldwide. In addition, Naomi Troni, formerly global new business director of Euro RSCG Worldwide, has been promoted to global chief marketing officer.