When penalty is imposed at work, some blame superiors, colleagues, subordinates.
But, I think that the person is to blame in all his/her troubles.
If the person were an ideal worker, what would be the point of punishing him?
If he or she tried, worked selflessly, and the authorities did not appreciate, then he himself is to blame. You have to be able to show own work.
If he became a victim of intrigue, then he himself is to blame, too. It’s the squeaky wheel that gets the grease.
If the subordinates let down, anyway it’s his own subordinates. The chief is in charge of the subordinates.
So, the man is to blame himself in all his troubles.