Why is it important to identify the critical path before starting a project? On what kind of projects would the critical path be irrelevant? What are the disadvantages of concurrent engineer

Chapter 6: Read Snapshot from Practice 6.1: The Yellow Sticky Approach to see how these rules are used to create project networks (page 173).
Answer the following questions:
Why is it important to identify the critical path before starting a project?
On what kind of projects would the critical path be irrelevant?
What are the disadvantages of concurrent engineering (fast tracking)?
What kinds of projects should avoid using concurrent engineering?
Please must contain in-text citation and references
Chapter 7 Exercises
You have been assigned to a project risk team of five members. Because this is the first time your organization has formally set up a risk team for a project, it is hoped that your team will develop a process that can be used on all future projects. Your first team meeting is next Monday morning. Each team member has been asked to prepare for the meeting by developing, in as much detail as possible, an outline that describes how you believe the team should proceed in handling project risks. Each of the team members will hand out his or her proposed outline at the beginning of the meeting. Your outline should include but not be limited to the following information:
Team objectives.
Process for handling risk events.
Team activities.
Team outputs.
Please must contain in-text citation and references