Participants and recruitment

All facilitators who had worked with the selected CRTs and managers of all selected CRTs were contacted by members of the CORE team by phone or email after the end of the 12-month intervention period, inviting them to participate in individual interviews. All staff who had been working in the team during the intervention period were invited via their team manager (who were contacted by members of the CORE team by phone or email) to attend a focus group. All potential participants were given an information sheet about the study, and provided informed consent before participation. Additional focus groups were held in teams where not all participants were able to meet at the same time, e.g. due to shift work. It was made clear that participation was voluntary, and that findings would be anonymised. We use the term ‘stakeholders’ to refer to the groups participating in this study (i.e. CRT managers, CRT staff, and facilitators), but recognise that this does not include service users or carers, so the term should not be taken to imply all stakeholders.