Complex sentence: Between 1987 and 1991 he returns to "La Voz del Norte" of Nogales, Sonora where he first occupied the position of sports editor and later became chief of information, chief editor, and eventually editorial coordinator.
Split into simpler sentences: Between 1987 and 1991, he returned to "La Voz del Norte" of Nogales, Sonora, where he first occupied the position of a sports section editor. He later became chief of information, chief editor, and eventually editorial coordinator.