Michael Hyatt suggest different ways to make major changes without a backlash.
1. Determine what you need to communicate.
2. Commit the message to writing.
3. Secure alignment with your leadership team.
4. Contact influential stakeholders personally.
5. Use all available media outlets.
6. Make yourself available to talk.
Over the years, I think I have learned some of these by making the mistakes. But he helps make them clear in list form.