Scott Valentine recommended this one to us and he has been using this framework with his team for over 18 months and getting some real results with it. The book is about changing ones mindset from one where you try to, or feel like you should, control everything to one where control, responsibility and learning is shared amongst the team. He calls it shifting from a unilateral control mindset to a mutual learning mindset and with this comes a set of values, assumptions and behaviours. It is consistent with creating collective leadership and when everyone in the team is familiar with it there is a shared language that can take you a lot further in conversations than you might otherwise get.