In order to gain the dominance of the Ming Dynasty in Liaodong, Yuan Chonghuan. Carry out their duties and make unified arrangements. It is necessary to fully control the allocation of resources and comprehensively unify the specific tactical choices. Obviously, the appearance of Mao Longwen made him feel uncomfortable.
Mao's main control area is far away from Yuan Chonghuan's main base in western Liaoning, which is equivalent to a local army independent of Liaodong's military and political command system. Mao only "obeyed" Yuan Chonghuan in name and expanded self-sufficiency in concrete actions. When Yuan Chonghuan needs Mao Longwen to completely obey his strategic considerations, he will feel that it is impossible without command. Mao's territory seems small, but the radiation range of the attack is larger than that of most garrisons in the Ming Dynasty. Their plundering of the rear of the Qing army can also deter the enemy more than regular warfare. This position is very scruple for Yuan Chonghuan.
Yuan Chonghuan had to stop Mao's attack and interference between Liaodong Peninsula and North Korea in order to negotiate smoothly with the late Jin army. However, Mao was isolated from the main control area of the Ming Dynasty, and many goods were obtained through robbery. Many of his followers also fought Mao Longwen on the basis of trophies. Therefore, it is impossible for Mao to give up his foothold. Because once the old model stops, his subordinates may abandon it. Even launched a small-scale internal rebellion to support an officer who is willing to continue to lead guerrilla operations. This is also the fundamental reason why Mao and Yuan Chonghuan can't survive.