Zhao Zilong is a rare general in the Three Kingdoms, but why did Liu Bei only let him look after the house and transport food and grass?

The landlord doesn't seem to know much about history and war. What was the ancient war fought? It is grain and grass. The so-called three armed forces do not move, food and grass go first. Sun Tzu's Art of War repeatedly mentioned the importance of grain and grass. Squeezing grain and grass is definitely not a trivial matter. General Wu Hu and Guan Yu are both brave and good at fighting, and Zhao Yun can't compare with him. Zhang Fei has a bad temper, and no one can control him except Liu Bei. Never pull the flow. Ma Chao wants to defend the Qiang people in the west, and Huang Zhong is old. If he is a little relieved, he will miss the big event. Only Zhao Yunyou general demeanor, calm and cautious. What does Zhang Fei who sells straw sandals do? Butcher, what does Guan Yu do? Murderer, what Zhao Yun said is better than these, right? It is also worth mentioning that Liu Bei is not a bird and his wisdom is not high, but he is absolutely first-class in knowing people and making good use of them. Cao Cao and Sun Quan are not as good as him, even Zhuge Liang is not as good as himself. Western Sichuan is mountainous, and it is more difficult to transport grain and grass. In fact, this is definitely a very important task in Shu. You see, after Zhuge Liang visited Qishan six times, he retreated three times because of poor food and grass, and Li Yan was a general. As a result, because the grain and grass were not as good as before, they were ousted for life and were never used again. The wooden horse that has been talked about for a long time is also made of grain and grass. Besides, housekeeping is not a trivial matter. For example, Xu Zhu and Dian Wei, two of Cao Cao's most intrepid generals, once served as Cao Cao's personal guards.