One of the knowledge areas I love is the HR management and the way you can improve the knowledge of the people who works with you.
Thanks to Herding Cats I have discovered this model and it helps me as guide for knowing where the people of my group are and what’s the next maturity level for each one.
I have also found what it’s supposed to be the original document from Stuart E. Dreyfus and Hubert L. Dreyfus. link