Adam Gerhart: 'We’re thrilled to have two of GroupM’s networks in the top three, and two-thirds of the top ten from our...
Plus: Joshua McDonnell, Jayne Azzopardi, Gavin Sommer, and Hugh Whitfeld.
Lesser rejoins GroupM in September from InfoSum where he spent the past four years as CEO and chairman of the data company.
Wetzel takes over from Brian Lesser, who has led InfoSum as chairman and CEO since 2020.