Featured. For CEO Rebecca Tos, the pool’s the best place for a mental workout. Dentsu Aegis Network Appoints Rebecca Tos as CMO and CEO of ColumbusMeet our Women in Media Marketing Winner and Woman of the Year Adnews - Columbus appoints Tos as National MD Qantas Commercial, March 2019 The Today Show, Feb 10, 2016 The Sunday Telegraph, July 2, 2019 The Sunday Telegraph, May 22, 2016 PlaceOS Podcast Dentsu Aegis Network Leadership Series