This document summarizes a presentation given by Mark Smith at the BASPCAN Conference on April 13, 2015 about changing children and families. It discusses 1) exploring the complexities of involving involuntary clients as social work partners and identifying best practices, and 2) reporting on findings about effective knowledge exchange. The key findings were that relationships are central to good social work and knowledge exchange, with trust, credibility, and timely engagement being important elements. It also describes a project funded by the ESRC Knowledge Exchange Opportunities Scheme working with Edinburgh and East Lothian to redesign child and family social work delivery based on evidence.