If the earlier part of the Nine Variations dealt with judging by situation, the last part turns to the one who judges, the commander.
Sun Tzu says it is not always the enemy’s blade that brings a commander down.
故將有五危：必死可殺也，必生可虜也，忿速可侮也，廉潔可辱也，愛民可煩也
gu jiang you wu wei, bi si ke sha ye, bi sheng ke lu ye, fen su ke wu ye, lian jie ke ru ye, ai min ke fan ye
A commander has five dangers. Set on dying, he can be killed. Set on living, he can be captured. Quick to anger, he can be toyed with. Too delicate in his purity, he can be shamed. Too tender toward his soldiers, he can be harassed. (The Art of War, Nine Variations, translated directly)