Clarke makes the move from HAVAS UK, where he spent more than four years at HAVAS Red, most recently as London MD.
Plus: Ryan Ferguson, Lorraine Woods, Alastair Baker, Serena Leith, and Sebastian Vizor.
Virginia Hyland - who joined Havas when she sold her own indie to the holdco - said the acquisition will bring scale....
Virginia Hyland: "Marketers are feeling the loaded pressure from their businesses to do more with the same or lower budgets, do more...
"Havas London, Havas Lemz, Havas New York, and Havas Immerse are no longer certified B Corps."
Incumbent Starcom, which is also in the running for the account, manages Subaru's media buying and planning.
Russell: "We’re embracing automation tools to supercharge creative output; however, artificial thinking will never replace the best ideas, creativity, relationships, and people."
"One is not more important than the other. There's no point having media without the right content, there's no point having content...
Leggett: "If our first year was about getting ourselves established in the market – recent months have been focused on supercharging our...
Shane Russel: "Winning PagerDuty is testament to the people, strategy, and innovation we bring to corporate and B2B communications."
Villella has started in the role, based in Sydney and reporting to Candice Veasey.
The agency's remits for both brands cover media strategy, planning, buying, digital performance and search.
Among those promoted are Winston Stening, Tom Newton and Shannon Randall.
Barry will return to Australia after working for Pubmatic in New York