 Castañeda immediately broke with the Estrada Doctrine, promoting what was called by critics the "Castañeda Doctrine".The new foreign policy called for an openness and an acceptance of criticism from the international community, and the increase of Mexican involvement in foreign affairs.On November 28, 2006, former President Felipe Calderón announced that Patricia Espinosa would serve as his Secretary of Foreign Affairs starting on December 1, 2006.