John Winsor John Winsor, currently the founder and CEO of Open Assembly, a strategy and innovation consultancy, also founded and was the chairman and CEO of Victors & Spoils and was the global chief innovation officer at Havas, which bought V&S, from 2012 to 2015. Voice 5 Ways to Save Agency Holding Companies From Becoming Irrelevant The business model is broken, but the right mindset can fix it.