Although I'm very impressed by some of SEI's recent work (on Agile and Acquisition Archetypes) I'm not a big fan of their Capability Maturity Model Integration (CMMI). Rather than spend a lot of time explaining why, let me simply point out that CMMI is solidly the result of Modernist management thinking. As I explained in an article titled Postmodern Program Management, I lean towards a postmodern point of view.
Accordingly, I've put together the first draft of a Rogue Maturity Model. In keeping with the spirit of RPL, you're all invited to contribute your thoughts and expertise to the RMM. Just click that link and type away!