Xandr's Brian Lesser on Partnerships, M&A and Overcoming the Cookie Crisis

Few executives have the instant name recognition of Brian Lesser: CEO of AT&T's ad-tech unit Xandr, former chief executive of GroupM in North America, and Adweek's Executive of the Year in 2018. Having worked in ad tech since the mid-2000s, Lesser is the man most synonymous with the GroupM programmatic powerhouse of the early-to-mid 2010s,...