Jerry Sternin argued that traditional expert-driven models for individual, social and organisational change often don't work. The Positive Deviance approach builds on successful but "deviant" (different) practices and strategies that are identified from within the community or institution. Positive Deviance is based on the belief that in every community, organisation, business or group, there are individuals or entities whose uncommon, but demonstrably successful behaviours or strategies enable them to find better solutions to problems than their neighbours or colleagues who have access to exactly the same resources. How does this happen? What can we learn from it? Could it work in Glasgow?