Last November, the New York-based expat Australian and newly minted global boss of Omnicom’s fleet of global creative agency networks, Troy Ruhanen, landed in Australia under cover of a plan to merge its Clemenger BBDO and CHEP operations - and met with former colleague then Deloitte Digital global commerce practice lead, Nick Garrett. This week, the global holding company officially announced its hybrid, prodigal son Garrett was the new Australia and New Zealand CEO of a radically restructured group - at least in Omnicom’s world - in which all of its once fiercely independent advertising, media, PR and diversified marketing services brands would fold into a single, rebadged Omnicom Oceania. For Ruhanen and colleague Florian Adamski, who controls $44bn in media budgets each year as global CEO of Omnicom Media Group, the Oceania overhaul is so critical to the future shape and swing of what will be the world’s biggest advertising and marketing services holding company after merger approval with rival IPG, that Garrett reports directly into global chairman and CEO, John Wren. Garrett, a former CEO at Clemenger BBDO ANZ who spent four years inside Deloitte Digital, is charged with finding a new, unifying way through the upheaval that’s rapidly coming at the $25bn post-merger business and thousands of its corporate clients courtesy of the AI, automation and agentics wave sweeping though industry. Here’s why and WTF happens next.