The book about the correct setting of tasks

Question

Time Management

Gentlemen, comrades, but advise some book on the correct setting of tasks for employees. Ahead of the New Year holidays, there is just time to calmly read smart thoughts. I know about SMART, I would like something well chewed and reasonable.

Answer 1

and why does the GTD book not fit since the GTD tag is here?

Answer 2

In order to set tasks correctly, you need to think correctly.
I recommend to get acquainted with the systems thinking of Jamshid Garaedaghi