please read Knowledge-Worker Productivity: The Biggest Challenge by Peter F. Dru

please read Knowledge-Worker Productivity: The Biggest Challenge by Peter F. Drucker and answer to the following questions:
1) How does knowledge worker productivity differ from manual worker productivity?
2) How are “quality” and “quantity” distinguished in terms of output between these sets of workers?
3) Do you think that practices used to manage manual workers are also useful in managing knowledge workers? Please explain.
Note: From your readings, you can see that I am fond of Drucker’s thinking and approach to management. I promise this is the last Drucker article for the semester