One of the big reasons change initiatives fail is because people do not like to be pushed out of their comfort zones.
That is only the surface emotion; a deeper reason is that people are uncomfortable with learning something new. Changing will mean absorbing new information, processing it and acting upon it. Sometimes that is hard.
Learning is intrinsic to change. This video contains suggestions for leaders to engage in the learning process.
The operative word for leaders is to engage; get involved in the learning process as student and teacher and watch good things happen.