Ahead of Cannes Lions 2026, Campaign asks senior leaders from the biggest global agency and marketing groups about the most pressing issues facing the industry. Omnicom’s John Wren kicks off the series.

Ahead of Cannes Lions 2026, Campaign asks senior leaders from the biggest global agency and marketing groups about the most pressing issues facing the industry. Omnicom’s John…

Ahead of Cannes Lions 2026, Campaign is asking senior leaders from the biggest global agency and marketing groups about the most pressing issues facing the industry. Accenture…