Nike is conducting a six-month review of its media agencies, covering an annual advertising budget of about $1 billion, according to a report in AdAge citing sources close to the matter. In addition to Wieden+Kennedy, the long-time primary media agency that created “Just Do It” and many other iconic campaigns for the Swoosh, Nike uses other agencies outside the U.S., including Mindshare and Assembly in Asia and Europe. It also relies on digital agencies and other specialty providers for specific projects. According to AdAge, Nike is talking to all the major advertising companies as part of the review, which is being handled by the R3 marketing consultancy. The process, which doesn’t involve Nike’s Converse brand for the moment, should be completed in the spring of 2022.