The publisher-backed online ad sales house aims to grow headcount by 20% this year as it targets growth outside the UK.

COO Jonathan Allan will be interim CEO while the board considers a successor.

Chalisey succeeds Euan Mackay, who will be promoted to CEO of the OOH JIC following the departure of Denise Turner in June.

Specsavers’ head of media, connections planning and insights joins Jack Benjamin to discuss how the retail chain has built a strong brand through consistent creative messaging and media investment.

Kantar’s latest Entertainment on Demand report found new streaming subscribers are increasingly flocking to ad tiers. Meanwhile, growth for Apple TV+ and Mubi have led to increased competition.

Total TV ad investment grew 3.8% year on year to £5.27bn last year as new advertisers invested in the channel.

Productions in the UK have become Netflix’s most efficient programming investments. The streaming giant’s share of viewing time now sits behind only the BBC and ITV.

The ASA and CAP are aiming to deliver updated guidance by mid-May, but uncertainty over the scope of the ban is weighing on advertisers, agencies, and media owners.

Alessi will take up the role in June. She replaces Debbie Weinstein, who took up a broader remit in December.

Magnite will serve as WeAre8’s first SSP, enabling programmatic buying of the social media challenger’s unique ad model for the first time.