Kate Robertson is stepping down from her role as UK group chairman and global co-president of Havas Worldwide after 12 years to focus more of her time on the One Young World forum. Robertson co-founded the UK-based not-for-profit One Young World with support from Havas back in 2009, with a mission to empower young leaders from around the world. She will continue as a consultant to Havas through to the end of next year.