Rebecca Van Dyck, who for the last four years has had global oversight of the Nike account at Wieden+Kennedy, has left the independent agency to become the worldwide advertising director at Apple, AdWeek reports.

Van Dyck, who worked exclusively on the Nike brand during her 12 years at W+K, has already started working for Apple. W+K said it has begun the search for Van Dyck's replacement.

Apple spent $285 million in measured media in 2006, almost double its 2005 total of $150 million. Its current Get a Mac campaign for Macintosh computers and recent Silhouette campaign for the iPod have been well-received.