Mexico"s president wants Finance Minister Agustin Carstens to replace central bank director Guillermo Ortiz, according to AP. President Felipe Calderon says Carstens can make the tough decisions required from the central bank president to help Mexico"s economy recover quickly from the global recession. Carstens worked at the Banco de Mexico for 20 years. He assumed his post as finance minister when Calderon took power in 2006. Ortiz ends his term Dec. 31 after 12 years in the job. Calderon announced his plans Wednesday. The Senate must ratify or reject his choice. Mexico sends 80 percent of its exports to the United States and it ends the year with Latin America"s worst performing economy.