In a new book on SF there is an interesting chapter by Mona Hojab: Simple steps and trojan mice. One of the topics she covers is: what do you do with the cynics when you want to start a change process in your organization? Her reccommendation is: work with the green people:
"When you want to make progress, working with the people who want to see change is a good place to start. In a traffic-light inspired metaphor, we call this working with the green people - as opposed to the amber people (who are not sure yet but will probably join in) or the red people (who are definitely not keen). Things start to happen, and the resulting news of progress will encourage engagement by others."