MGT404 Organization design and development

Help me study for my Management class. I’m stuck and don’t understand.

Organizational Restructuring

1. Discuss the downsizing process in your own words and provide an example.
2. Discuss the reengineering process in your own words and provide an example.
3. Briefly discuss the advantages and disadvantages of each of the common organizational structures. 
4. Discuss the importance of employee involvement in the decision-making process and its impact on the organization performance.