Methods This project was a "cluster randomized controlled trial" comparing 3 CP-MHICM teams (with CPs) to 3 control teams (i.e., without a CP), at MHICM sites within VISN-22. All patients on the 6 MHICM teams' caseload during each site's recruitment period were eligible. 282 MHICM patients were enrolled, 149 at the intervention sites and 133 at the control sites. Each intervention MHICM team used a strategic planning process to tailor the CP intervention to local priorities and structures, involving multiple meetings to discuss the CP's role, hiring, and incorporation of CPs into the team. The project hired the CPs, provided training, assisted in their implementation on the teams and provided ongoing supervision. The CPs worked for about 12 months.