fast tracking

Illustrate two (2) advantages and two (2) challenges associated with fast tracking and provide examples based on your own experience (not examples from the text).
Discuss both what it means and possible causes for a project with a CPI of 1.2 and an SPI of 0.8 (include hypothetical figures for PV, AC, and EV in your discussion).
Discuss the benefit of effective project closure using examples to support your answer.
Recommend two (2) best practices concerning project closure that would apply to almost any project.