 Heba made Yuwen the governor of the key Xia Province (夏州, roughly modern Yulin, Shaanxi).By this point, Heba Yue, in alliance with Houmochen Yue, controlled almost all of the western provinces.However, one provincial governor, Cao Ni (曹泥), the governor of Ling Province (靈州, roughly modern Yinchuan, Ningxia), was aligned with Gao Huan and refused to follow Heba's orders.