Yuan Shu is the enemy of Yuan Shao, so Liu Bei's original intention is to destroy Yuan Shu and occupy Wise. The relationship between Cao Cao and Liu Bei also tends to be balanced. Liu Bei should not accept the scourge of Lu Bu. He should kill Lu Bu to please Cao Cao. Lyu3 bu4 decisive battle in Xuzhou, also afraid that Liu Bei will be destroyed one day. This contradiction cannot be solved at all. Better start first. Chen Qun advised Liu Bei not to condemn Yuan Shu at that time, but Liu Bei wouldn't listen. Losing Xuzhou is Liu Bei's fault. He doesn't blame others. Losing Chen Qun and Chen Deng is Liu Bei's own fault.
Strategically, Chen Deng said that Yuan Shao, Cao Cao and Lu Bu played applause together, which was very popular with Zhang Yi and Chen Ping. In military strategy, when Cao Cao attacked Lyu3 bu4, Chen Deng was the first pioneer. Lu Bu was busy threatening the hostages for peace. Chen Deng also fought Sun Ce's army with an army of one county, and easily defeated the enemy by defeating the enemy and giving up halfway. Chen Deng doesn't have his own army, so he should support Liu Bei as the ruler of Xuzhou.
After Chen Lei and Liu Bei were defeated one after another, Chen Dengcai took control of Xuzhou with the support of Cao Cao. Cao Cao supported Chen Deng to deal with Lu Bu, but Chen Deng solved Lu Bu's suspicion very well, which is not easy, because you have to know how big Guangling County is. When Chen Deng was the governor of Guangling, Xuzhou had three pillars. Chen Deng has only a small number of troops, but he is very popular in the local area and has the ability to control water, so his strength is enough to compete with Lu Bu and Cang Ba. Later, Cao Cao did not listen to Chen Deng's plan to annex Jiangnan.