The correct answer to this open question is the following.
Although you did not attach the text, we can comment on the quote.
"The art of getting things done through the efforts of other people.”
This quote means that good managers motivate and positively influence employees to get the job done. Managers coordinate and monitor the work of the employees. Managers first plan, then establish the goals to be accomplished and then direct the work effort to be productive.
If I were a manager of a company, I definitely try to emulate what the quote says. For instance, the manager of a recreational and sports club. I would do everything to establish clear, specific, and attainable goals so my employees could understand them. Then I describe the role and responsibilities of each employee so they can do their job without any doubts. And of course, I would delegate so they can do their jobs happily. No unnescesary intromissions. The objective would be to offer the best service possible to our clients.