procurement issues

When a significant percentage of project costs are related to procurement, project reviews will necessarily spend some time on procurement issues. Select two of the following four industries: 

•Service (public and private)
• Manufacturing
•Software and IT
•Construction/building/maintenance
Compare the two industries with respect to how you would conduct project reviews to integrate procurement, risk management, and contractual obligations. How would the reviews differ in the two industries if the project were carried out completely in-house instead of involving a third party for some or all of the work?