Castelli also abolished the mita in Upper Peru, a mandatory form of public service that bordered on slavery. Mariano Moreno has also wished to end the mita, but Moreno had resigned from the Junta by this point. Without Castelli being in Buenos Aires to mediate between them, the disputes between Moreno and Saavedra had worsened. The Junta requested that Castelli should moderate his actions, but he went ahead with the positions he shared with Moreno. Several Saavedrist officers, such as José María Echaurri, José León Domínguez, Matías Balbastro, chaplain Manuel Antonio Azcurra, and sergeant major Toribio de Luzuriaga, planned to kidnap Castelli, deliver him to Buenos Aires for trial, and give command of the Army of the North to Juan Jose Viamonte. However, Viamonte did not accept the plan when he was informed by the conspirators, and did not attempt to carry it out. When Castelli knew about Moreno's resignation, he wrote a letter to Vieytes, Rodriguez Peña, Larrea, and Azcuénaga, asking them to move to Upper Peru. If they defeated Goyeneche, they planned to march back to Buenos Aires. However, the letter was sent via the common postal service, and the postmaster of Córdoba, Jose de Paz, decided to send it instead to Cornelio Saavedra. The Morenist members of the Junta had already been ousted and exiled by that point.