Please describe an 8-character idiom in which a senior leader was temporarily replaced due to lack of ability. There seems to be another sentence in the middle, thank you.

It's taboo for a military strategist to change hands when he gets cold feet.

In Sun Tzu's Art of War, there are twenty articles about the need to use troops to be taboo for generals, as follows:

1, unknown friend or foe

It's easy to get cold feet.

Step 3 look forward, look back

Step 4 hesitate

5. The rear of the car is unstable

6. Poor protection

7. Attack from all directions

8. Fortress Besieged is flawless

9. The generals disagree.

10, showing weakness.

1 1, poor communication.

12, eager to win

13, fight to the death

14, afraid to surrender without a fight

15, give the enemy a break.

16, underestimate the enemy.

17, split up and fight.

18, soldiers accidentally

19, victory means arrogance, and failure means elegance.

The enemy didn't move, so I moved first.