Ternero started his coaching career as assistant to Sergio Markarián at Universitario de Deportes, when Markarián resigned, Ternero was given his first opportunity to work as a club manager.
Ternero started his coaching career as assistant to Sergio Markarián at Universitario de Deportes, Ternero was given his first opportunity. This was to work as a club manager. Markarián resigned.