Zhang and Wu disagreed on who should succeed Duan. Wu wanted to restore Cao Kun as president but Zhang was vehemently opposed. What followed was a series of weak interim governments. The civil service collapsed due to the pillaging and lack of pay and the ministries existed in name only. There were mass resignations with remaining cabinet ministers pressured by the military to stay on. The only functioning parts of the bureaucracy were the postal service, customs revenue service, and the salt administration which was staffed by foreign employees. No legislature was created as it would have been too expensive and difficult to assemble.