Saatchi & Saatchi LA hired Fabio Costa as executive creative director and Dwayne Koh as digital executive creative director. Costa will report to Jason Schragger, chief creative officer. He most recently served as executive creative director at TBWA\Chiat\Day, where he worked on brands including adidas, Netflix, The Walt Disney Company, The Grammy's and Miller Lite. He also led all global communication efforts for Louis Vuitton. "Fabio couldn't be joining our team at a better time," said Schragger. "He has an unparalleled portfolio of work and his groundbreaking creativity, global perspective and boundless passion are invaluable to an agency that is …

WongDoody Los Angeles hired Matt Burgess as creative director. He joins the agency from Olson Minneapolis, where he worked for the last eight years in roles ranging from copywriter to creative director. Burgess will work with recently-promoted creative director Dennis Lee to lead the agency's efforts for Air New Zealand, National University and Cedars-Sinai. Before Olson, he worked at Campbell Mithun as a copywriter, producing work for brands including Nature Valley, Burger King, H&R Block, the United Way, to name a few. "We're thrilled that Matt is making the move to LA to join the WONGDOODY family," said Pam Fujimoto, …

We Are Social promoted Greg Eckelman to head of strategy, to oversee both the agency's Strategy and Research & Insight teams in the US. Most recently senior strategy director, Eckelman has more than a decade of experience in digital marketing strategy, planning, brand positioning, content and channel strategy and product management. Prior to joining We Are Social last fall, he was senior creative strategist at Code and Theory, strategy director at Big Fuel Communications, and held senior strategy positions at Grey Group, MRM Worldwide and BLiNQ Media. Filling Eckelman's previous role is Rebecca McCotter, who joins as senior strategy director. …

360i hired three employees in its New York headquarters. Aaron Sedlak was named group creative director and reports to Pierre Lipton, chief creative officer. Prior to 360i, he founded Stranger NY, an agency which focused on developing digital content for Vevo, Montreal Canadiens, Prestige Brands, Red Bull and Ford Europe, among others. Prior to that, Sedlak was digital creative director on the VISA World Cup campaign working in partnership with Almap BBDO in Brazil. Felicia Zhang was named vice president, strategy and reports to Lee Maicon, chief strategy officer. Zhang previously worked at Nike, AKQA, Ogilvy and Cole Haan. Lastly, …

The Marketing Arm promoted Michelle Palmer to president of sports & experiential and Trina Roffino to chief client officer, a new position. Palmer, who has worked for the agency for 16 years, will report to agency CEO Dan Belmont, who previously led the sports & experiential practice. In addition, Palmer will continue to lead the AT&T business. In her new role, Roffino will create solutions for clients to deliver best-in-class services. She will also oversee the agency's strategic account leaders.

Andy Clarke joined Publicis Worldwide New York as executive creative director on Cadillac, reporting to Andy Bird, chief creative officer, New York. Clarke joins the agency from Arnold Worldwide New York where he was global executive creative director. While there, Clarke led global creative for Jack Daniel's and Ocean Spray. His career includes executive creative posts at J. Walter Thompson New York, Carmichael Lynch New York and Saatchi & Saatchi, in both London and Singapore. "I'm delighted to have Andy joining us," said Bird. He's a real talent and has a fantastic pedigree of producing great work on iconic brands. …

DigitasLBi promoted Laurent Ezekiel to managing director, New York region (including Atlanta). Ezekiel succeeds Joanne Zaiac, who was elevated to the newly created role of chief operating officer, North America. Both report to Tony Weisman, CEO, North America. Ezekiel joined the agency in 2003, and most recently served as global client services director, based in London. He will retain his global client services role on key relationships including GSK, Unilever and Shangri-La. In this capacity, he will continue to report to Luke Taylor, Global CEO, DigitasLBi. Zaiac joined the agency in 1999. She has served as president, New York, since …

Peloton hired Lori Marcus as chief marketing officer.

RealityMine tapped Tom O'Sullivan as chief revenue officer.

Allan Solomon joined bluemarlin as consultant director.