Omnicom Media Group has secured Adidas' global media account, ending WPP's long-standing stewardship of the business following a competitive agency review. The account, estimated to be worth approximately $512 million, will now be managed by PHD, Omnicom Media Group's global media agency network. According to industry reports, the review also involved Publicis Groupe, with Omnicom ultimately emerging as the successful bidder. The appointment marks one of the year's most significant global media account wins and further strengthens Omnicom's position in the highly competitive international advertising market. Major Shift in Adidas' Media Strategy The account was previously managed by WPP's EssenceMediacom, which has overseen Adidas' global media business since 2018. Mediacom originally secured the mandate before becoming part of EssenceMediacom following the merger of the two agencies in 2023. The latest review signals Adidas' decision to adopt a new global media partner as it continues to evolve its marketing and communications…