Environmental forces in organizations

Environmental forces in organizations

Starting new class today. Would like a good head start with your help.
Its a first direct question,

What environmental forces drive organization development in your field or industry? What are the steps successful organizations take when responding to change? Have you experienced forces of change in your work environment? How did the changes affect your organization?
Here is a possible reference to use. It is my course text book.
JOHN P. KOTTERAuthor of International Bestseller Leading Change DAN S. COHENReal-Life Stories of How People Change Their OrganizationsHARVARD BUSINESS REVIEW PRESS