Share success stories from other Leagues. Focus efforts at the beginning on those who are most ready to embrace the changes. Those who are most resistant may not attend diversity-related events initially. Keep moving forward, however. Continue to communicate about the effort to everyone-don't ignore those who are not ready yet for change.
Dialogue often breaks down under pressure.
Part of your job as a change agent is to help keep communication channels open. Don't assume everyone understands all the details. Provide facts and explanations. Find those individuals who can provide support and assistance. It is critical to find a way to stay with the effort.