Project management

Why is scheduling overtime a popular choice for getting projects back on schedule? What are the potential problems of relying on this option  (Ch. 9)?
Identify four indirect costs you might find on a moderately complex project. Why are these costs classified as indirect (Ch. 9)?
What is the difference between managing and leading a project (Ch. 10)?
Why is it critical to keep the project sponsor informed (Ch. 10)?
Which of the eight traits/skills associated with being an effective project manager is the most important? The least important? Why