How to Prove Value as Advertisers ‘Take Back Control’

S4 Capital chief Sir Martin Sorrell says that ‘every single client is looking at in-housing’

The ‘in-housing’ debate, where brands ditch their agencies and bring those capabilities (whether media buying, creative or programmatic) under their roofs, has raged throughout the media industry over the last decade, ever since the potential to automate online ad spend promised marketing departments the ability to make serious savings on their media budgets.