OPINION By MARK LORENZANA There have been mostly negative reactions to the appointment by Mexican President Andrés Manuel López Obrador (AMLO) of Leticia Ramírez as head of Mexico’s Secretariat of Public Education (SEP), to replace Delfina Gómez Álvarez. Ramírez has not been in her position for more than a couple of days, and already the SEP had presented  a “New