Interesting article on hrzone.co.uk from Matt Keen at Maxxim Consulting around embedding change effectively.
For me the key is around not only ensuring open and honest communication but also that communication starts as early as possible. As Matt points out engaging the leadership team and ensuring they are aligned is paramount in getting buy-in.
Change programmes by their very nature will evolve and even alter their focus, so flexibility on the part of the change team is necessary to ensure the successful embedding of the change.
The full article can be found at http://www.hrzone.co.uk/topic/managing-people/seven-secrets-effectively-managing-change/118086