John WinsorOpinion Contributor@jtwinsorJohn Winsor is the founder and CEO of Open Assembly and an executive-in-residence at the Laboratory for Innovation Science at Harvard (LISH). In 2009, Winsor founded Victor’s & Spoils, the first ad agency based on crowdsourcing principles. Voice How the Old-School Agency World Can Keep Up With Changing Times Too many have a mindset that isn’t consistent with reality. Voice 5 Ways to Save Agency Holding Companies From Becoming Irrelevant The business model is broken, but the right mindset can fix it.