This document discusses how implementing the five process areas from the People Capability Maturity Model (People CMM) can help sustain high maturity process implementation using the Capability Maturity Model Integration (CMMI). It argues that sustaining high process maturity requires developing workforce competencies through practices like competency analysis, competency development, and organizational alignment. The five People CMM process areas - Competency Analysis, Competency Development, Organizational Process Focus, Organizational Process Definition, and Organizational Performance Alignment - share common implementation objectives with high maturity CMMI practices and can help address issues like attrition, knowledge retention, and competency erosion that threaten process stability. Integrating these frameworks allows an organization