 He sent messengers to make overtures to Cui, who acted as respectfully as possible and offered bribes to Du.When Du arrived at Chengdu, Cui treated him with the utmost formal respect but did not permit him any actual control over the governance.In response, Du repeatedly recommended to Emperor Daizong to let Cui become military governor while placating Bo, Yang, and Li Changkui by making them prefects of their prefectures.