Excerpt from Organizational Development Through Planned Change: A Development Model The last area is one of the most important issues in the contract ne gotiation process power gaining the influence necessary to work ef fectively in the client system. There are four primary sources of this power: (1) the legitimately constituted authority of the system the president says one should do this)' (2) expert power the prestige of a consultant, or the compelling logic of a solution); (3) coercive power; and (4) trust - based power the informal influence that flows from collabor ative problem definition and solution. While in most change projects power from all four of these sources is brought to bear in implementation of the change, the power derived from collaborative problem definition is often especially critical to the success of those planned change efforts where the system's formal power structure and experts are seen to be the object and/or causes of the problem to be solved. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.