organizational effectiveness and efficiency

A minimum of 300 words each question and References (questions #1- 3) KEEP QUESTION WITH ANSWER EACH QUESTIONS NEED TO HAVE A SCHOLARY SOURCE

1. How does an understanding of management and organizational behavior lead to organizational effectiveness and efficiency? Why is the study of management theories (classical, behavioral and modern management) relevant today?
2. What are the four career issues in the new workplace facing managers today? Discuss one of the major challenges, highlighting its importance in the 21st century workplace and how it affects the behavior of people within organizations.
3. What are the three essential managerial skills? Explain how the importance of each skill varies across the typical levels of management in organizations.

Don’t forget, the question isn’t just asking you to list the skills, you must also provide a thorough discussion on how they vary across different levels of management– answer the question fully.