This document discusses organizational development and challenges related to diversity and inclusion. It provides an overview of Lewin's model of change which outlines three stages: unfreezing, moving/changing, and refreezing. Schein's expanded model of the three stages is also described. Implementation theory focuses on specific intervention strategies like human process-based changes and techno-structural changes. The document discusses challenges like diversity, discrimination, and the glass ceiling which can limit advancement for women and minorities. It emphasizes the importance of inclusion, cultural awareness training, and effective diversity practices.