...takes a long time to achieve the highest levels of processmaturity. And software development is a complex process...response was that it depends where you are in terms of processmaturity and other factors that might shape your priorities...
http://www.computerweekly.com/blogs/david_lacey/managing-the-human-dimension/
...implementation proficiency. In fact, P-CMM was developed to develop workers’ competencies according to the needs of processmaturity levels. Many organizations’ practices have matured over time particularly in the area of software engineering...
http://www.pmhut.com/the-importance-of-people-capability-maturity-model-p-cmm