Discuss the stages of Tuckman's model for team development showing how the tool may be effectively used by the project manager. QUESTION 4 (20 Marks) Why, if there is a tendency to overestimate activity durations and add in a safety net to the end of a project, do so many projects come in behind schedule? Critically discuss. QUESTION 5 (20 Marks) As a result of companies being constantly in need of outsourcing or contracting significant segments of project work to other companies, there arises a need to establish mutually beneficial relationships with the people from different organizations as conflicts in such situations become inevitable. Such conflicts often create costly delays impacting the project negatively. One approach to resolving conflict is to use project partnering as an effective way to engage both the project owner and contractors. Critically discuss how partnering can be used strategically to facilitate the relationship between the parties. QUESTION 6 (20 Marks) "Project network times are not a schedule until resources have been assigned." Critically discuss this statement with reference to defining resource scheduling, benefits and types