The Circles of Adults (CoA) group problem solving process has been used by educational psychologists (EPs) when supporting vulnerable educational placements, but its effects upon staff or student outcomes have not been explored. CoAs were used in the current research with staff supporting Children Looked After (CLA) in secondary schools. A quasi-experimental explanatory, sequential, mixed-methods design investigated changes in participant causal attributions, perceived self-efficacy, and perceived implementation of subsequent actions. Participation in the CoA had no significant effects upon causal attributions or self-efficacy; however, staff perceived greater self-efficacy and success in implementing actions following the CoA. They valued the process, reporting enhanced group cohesion and task focus. Insights and empathy were deepened regarding the focus student, as were awareness of group processes and reflection. Threats in small-scale research are considered and a possible mechanism for the CoA's effect as a supervisory approach is proposed.