This document proposes changes to the CMMI model to better align it with high maturity practices as understood by the SEI. It describes proposed changes to specific goals and practices in the OPP, QPM, CAR and OID process areas based on feedback from CMMI instructors and appraisers. The changes are intended to make high maturity practices more consistently understood, applied and appraised by emphasizing quantitative process management, use of process performance models, addressing common and special causes of variation, and continual incremental and innovative process improvement.