Is Wei Yan's fantastic plan in Woods Valley really unreliable? Why didn't Zhuge Liang adopt this suggestion?

Zhuge Liang launched an expedition to the north. Wei Yan asked Zhuge Liang for 5,000 soldiers, marched from Woods Valley to Tongguan and Wuguan, and kept Wei Jun out. After Zhuge Liang's army arrived, it captured Chang 'an and occupied Guanzhong. This strategy is similar to Han Xin's "build a clear road and get up early". Han Xin succeeded and helped Liu Bang conquer the world. Wei Yan put forward this plan many times during Zhuge Liang's Northern Expedition, but Zhuge Liang did not agree. Zhuge Liang thought it was too risky. It is better to take Longyou first and then Guanzhong.

Since there is a successful precedent, why didn't Zhuge Liang adopt this strategy? In fact, the reason is very simple. Zhuge Liang is not Liu Bang. Liu Bang managed the shogunate better than Zhang Liang. Xiao He is inferior to the country, the people and the south. Million soldiers, winning in the attack, not as good as Han Xin. If Liu Bang can use them, he can seize the world. Zhuge Liang has neither Sean nor Xiao He, nor Han Xin. On the one hand, Zhuge Liang lacks talents, and more importantly, he is not as good at decentralization as Liu Bang. He is cautious and hands-on, which is Zhuge Liang's achilles heel. Zhuge Liang was exhausted and failed to realize his desire to restore the Han Dynasty.

This is determined by Zhuge Liang's character. Liu Bang really thinks that Sean, Xiao He and Han Xin are better than themselves. In Liu Bang's view, Sean, Xiao He and Han Xin are all experts, so it is better to leave professional things to experts than to do them themselves, so Liu Bang completely trusts them and lets them do it. But Zhuge Liang is different. In his view, his people can't do better than themselves politically, economically, militarily, strategically and tactically. Therefore, he tried to do everything by himself. Since others are not as good as themselves, how can you let him leave things to others to do?

If Zhuge Liang were Liu Bang, when Wei Yan proposed the timing of the meridian valley, he would certainly agree, because he knew that he was not as good as Wei Yan in war except for his large number of people. Even if Wei Yan is wrong, he will listen to Wei Yan because Wei Yan is an expert. There is a judgment that "character determines fate." Liu Bang's success and Zhuge Liang's failure are not accidental, but inevitable.