help me rephrase this, These cases should indicate that participatory action research can have far greater impact than the conventional professional expert role of the consultant in stimulating and guiding major organizational change. The cases we have described suggest that the participatory research process not only can achieve results of current benefit to the organizations but can lead to a rethinking and restructuring of relations so that the impact of the process can carry far into the future. They also show that advances in thinking about how organizations work and learn are possible through PAR