Dou Shengming didn't make a move, but Tang Xiaofan was targeting Mi Lee's company. That meant there was only one explanation, and that was that Dou Shengming had left the matter in Tang Xiaofan's hands. Tang Xiaofan was most likely being observed and protected from the shadows.
Gu Langping thought that Tang Xiaofan was going to deal with Mi Lee's family's company, which definitely had Dou Shengming's tacit approval and support, so it was very likely that Mi Lee's company would go bankrupt, but it couldn't be ruled out that Dou Shengming didn't go all out to protect the cooperation between Dou's and Dou's, and only let Mi Lee pay the price.
If Tang Xiaofan could really deal a heavy blow to Mi Lee with a single blow this time, then he would have the chance to destroy Mi Lee's Mi's Group and even annex their company. At that time, the Liu family's Gu's Group would become even more powerful, and it would be impossible for them to contend with Wu Tie.