There is another story in the middle. Ma Chao was trapped by Cao Cao and turned against Han Sui. Since then, the attack on Jizhou has been unsuccessful, so the secretariat Wei Kang turned to Xia for help, but to no avail, only to be killed by Ma Chao after opening the door and surrendering. After Xia got the military order, he led the troops to war. When Ma Chao saw it, he fled to the Western Heaven and took refuge in Zhang Lu. I happened to know that Liu Bei was attacking Jia Mengguan at this time, so Ma Chao fought to capture Liu Bei alive to repay the kindness. As soon as Zhang Fei heard that Ma Chao was coming to tackle the problem, he went to war. As a result, Zhang Fei and Ma Chao fought on the battlefield for several days, and they were neck and neck. Seeing this, Liu Bei asked Kong Ming what his plans were. Kong Ming used a deviant strategy, and finally debater Li Hui surrendered to Liu Bei. Liu Bei personally received the guests and regarded them as the most important.
In the official history, after Guan Yu learned the news, he wrote to ask Kong Ming whose talent could rival Ma Chao. In fact, he didn't say that he would come to the competition immediately. Guan Yu suddenly wrote because he thought his position would be threatened. At that time, he was the first person in Liu Bei's army, and he has been treated like this since Ma Chao. To tell the truth, he must have some doubts and doubts in his heart and some sense of crisis. But Kong Ming knew Guan Yu well, and wrote back that Ma Chao and Zhang Fei were equal, but they were still not as good as Guan Yu. For now, guarding Jingzhou is the most important thing, and you can't be distracted. This time, Guan Yu's heart was established, and an infighting was easily resolved. I have to say, Kong Ming is really smart.
From this point of view, Kong Ming is not only busy with foreign enemies, but also busy with resolving internal struggles. However, it is really because he is familiar with everyone that he can skillfully resolve every struggle.