He steps aside from his head role at Hearts & Science.
Shares climb, although performance expected to moderate in 2019.
Renewals, cancellations and the scoop on new shows worth watching.
Owner of Sapient.Razorfish and Starcom has also hired Lloyds marketer Ros King.
Media and advertising analyst moves back to agency world.
Ad revenue doubled last year as company warns of higher investment costs for 2019.
Shares up after results confound expectations.
Award-winning filmmaker Lauren Greenfield aims to boost female and diverse voices.
Partners include Facebook, Google, Kantar and Nielsen.