Answer:
I think this means that the dead wood (useless/burdensome people or things) are the same anywhere they are. So the useless are useless not only in one situation but useless all around.
Explanation:
Example: He cut the "deadwood" from the group. So he is getting rid of the useless people in the group.
My answer would be leadership or management. This is because as a leader, you manage other people, you supervise other people, you hopefully motivate other people and as a leader you need a good strategy.
The art of getting things done through people.
Leadership.
