The Interpublic network maintains strong creative output and holds its own in business performance, but struggles to convince that it is moving forward fast enough in terms of innovation.
Departure contrasts with peers Maurice Lévy and Sir Martin Sorrell, who have continued to work.
Revenues are growing again and size matters, including for clients and investors, Gideon Spanier says.
The Interpublic Group firm said it is helping the platform better understand its members.
No agency brands will be eliminated and no layoffs are expected.
Kevin Taylor is a former police hostage negotiator. Here, he explains how people should prepare for the new social norms post lockdown.
Top news, insights and analysis every weekday
Sign up for Campaign Bulletins