Why can't the post-90s children see through Jia Xu's obscurity?

If we know that they are all children, and the oldest will not be over 20 years old, how will they know what strategy?

In ancient times, casualties were inevitable. Jia Xu advised Zhang Xiu to surrender to Cao Cao for the second time, which was the greatest help to Cao Cao. At that time, Cao Cao's greatest demand was a lot of manpower. Cao Cao is called a treacherous man. One is treacherous, and the other is that he knows when to be patient. The eldest son and love will die, and he will take full responsibility. Cao Cao won't achieve anything if he only knows how to complain. Zhang Xiu's surrender, Jia Xu nature is greater than the work.

Who is the successor between Cao Pi and Cao Zhi? Yang Xiu stood on Cao Zhi's side, but Cao Cao wanted to establish Xelloss, which was influenced by Yang Xiu's father Yang Xiong. In a wolf's den, it is best to have a son with outstanding literary talent, or a son who is ingenious, cunning and resourceful, and can keep Cao Shi's clan. Yang Xiong wept bitterly because he could not protect the property of four generations and five people. Cao Cao sees it in his eyes and wants it in his heart. Jia Xu knew Cao Cao's mind very well, so he gave him good advice. Yuan Shao and Liu Biao established their beloved son, but they were unable to hold up the facade, and the result was destroyed. Yang Xiu is very clever and seems to know what Cao Cao is thinking. However, he is only a chess player after all. Life in an ivory tower can't be compared with Jia Xu's struggle for survival in stormy waves.

Jia Xu escaped unscathed because he knew Cao Cao and Yang died of cultivation because he had little experience.

On the other hand, after Jia Xu's return to Cao Cao, there was no good military strategy, and it was also a clever evasion.