The SPO effect: How GroupM saved $1.5 million in supply fees | Campaign US
WPP’s media investment behemoth drove savings through a preferred supplier relationship with Index Exchange.| www.campaignlive.com
Join the Campaign community and read about brand campaigns, key moves in ad agencies and the latest thinking from international creative thought leaders.| www.campaignlive.com
WPP’s media investment behemoth drove savings through a preferred supplier relationship with Index Exchange.| www.campaignlive.com
