Revolving Door Roster Updates: Flight Story, Havas, Mason & More

By Kaila Mathis 

It’s Friday, so of course, we’re back with our favorite agency roster switch-ups. Let’s dive into the biggest hires and promotions of the week.


Creative production studio Ambassadors made two new key hires to strengthen its production team. Annejes van Liempd joined as executive producer in Amsterdam and Tessa Ward signed on as producer in New York.


Crowley Webb

Buffalo-based full-service marketing communications agency Crowley Webb promoted Matt Low from senior vice president and creative director to chief creative officer. In this role, Low will oversee creative team management, strategy and project execution.

Done + Dusted

Global entertainment group Done + Dusted named Melanie Fletcher its CEO of North America. Having been at the agency since its infancy, Fletcher will now spearhead its U.S. business with a focus on expansion across the company’s creative divisions.

Flight Story

Flight Story, a new service platform for social-first investor relations, promoted McVal Osborne from social chain head of data and insights to chief data officer. Osborne will lead the growth and development of Flight Deck, the company’s proprietary data platform.


Interpublic Group agency Golin hired Luke Peterson as its new head of data and analytics at Golin Group, North America. In this role, Peterson will lead measurement strategy for all of the company’s agency brands.


To push forward its commitment to creativity and collaboration, Havas made two key appointments on its leadership team. Mark Whelan was appointed the chairman of Havas King’s Cross and Xavier Reeves was named U.K. group CEO at Havas Creative.

Horizon Media Canada

Mat Horst was named the vice president of digital activation at Horizon Media Canada. Coming from his previous role as group director, digital at Dentsu International Toronto, Horst will lead the agency’s digital activation practice, including partnerships, process creation and implementation and programmatic offering expansion.

Innocean USA

Innocean USA promoted Cindy Scott from svp, strategy to chief strategy officer. As the first female to hold a C-suite position at the agency, Scott will lead data science and strategy, as well as hold a seat on the global forum committee.

Mark Allen & Co.

Hillary Herskowitz was named the head of media and entertainment at public relations firm Mark Allen & Co. In this role, Herskowitz will lead the media and entertainment division and manage day-to-day activities of the firm’s clients.


Michael Field joined Mason as its new vp executive creative director as the brand unveiled a new positioning, logo and website. Field is an industry veteran, with experience working with clients including GE, Heineken, Emirates and AT&T Wireless.

Nail Communications

Nail Communications hired Ashley Lawlor as its production manager, where she will ensure alignment between the project management, account management and creative teams. Lawler previously worked in production at Sleek Machine and MullenLowe U.S.

Night Market

A.J. Storinge joined Night Market, the Horizon Media company helping brands maximize ecommerce sales, as its chief business officer. Bringing 10 years of experience in agency C-suite roles, Storinge will lead client relationship management, business development and multi-stage sales pipeline growth.

Open Swim

Open Swim is strengthening its team with two new hires. Lian DesMarais—who has worked with clients including Calvin Klein, Nickelodeon, Adidas and Samsung—joined as head of production. Jefferson Wenzel, who has worked as a 3D modeler, animator, VFX compositor and more, joined as assistant editor.


Presciant’s managing partner, Joanna Seddon, was selected to be the CEO of the Marketing Accountability Standards Board, created by the world’s leading marketing organizations to set standards, best practices and measurements for brands, marketing and financial impact. This new role will give Seddon a larger platform to elevate the world of marketing.

Sage Growth

Sage Growth hired Drew Whalen as its new senior vice president, business development. With over 20 years of experience in healthcare working with partners including CVS and Philips Healthcare, Whalen will now help Sage Growth meet growing market demand and partnership opportunities.

Sibling Rivalry

Sibling Rivalry brought two experienced strategists onto its team to fuel its ability to become a better strategic partner for brands. Becky Lau joined as head of strategy and Kari Andrusko joined as strategy director.


Siegel+Gale hired Esther Haynes as its new group director of brand communication. A brand strategy expert with experience working with Google, Amazon, Meta and Netflix, Haynes will work with global clients to develop their verbal identities through strategic messaging, brand voice, brand stories and written content.

The Markup

Sisi Wei was named the editor-in-chief at mission-driven newsroom The Markup. Wei has over 10 years of experience creating equitable change in journalism—and will now lead editorial and operational insight across The Markup’s newsroom.


This week IPG media agency UM reduced its staff in the U.S. Approximately 15 employees were laid off, less than 1.5% of the agency’s staff. The cuts were not related to the recession, a UM representative told Adweek—and 80 UM roles remain open in the U.S. A former UM employee who was laid off yesterday and spoke with Adweek anonymously said the news came as a surprise, following remarks U.S. CEO Joe DeMiero made in a meeting last week that implied the agency was growing.


Brett Bimson was named the first executive creative director at digital creative agency Unfold. In this role, Bimson will oversee creative for clients like DC Comics, Red Bull, Warner Bros and Amazon Prime Video.