First up after lunch, Chloe Nicholls, our new Head of Ad Tech, sat down with Niel Bornman, Chief Products & Services Officer at GroupM and Irin Rahman, Chief Data & Digital Officer at PHD Media. They discussed the challenges facing digital ad measurement, and how their roles have redefined the way agencies speak to clients about the issue. Both agreed there has been a realignment of past practices to ensure strategies are more in tune with individual business goals. Rahman referenced the old...