Complex sentence: He became the Dodgers AAA Pacific Coast League manager in 1969 with the Spokane Indians (1969--1971) and remained in the position when the Dodgers switched their AAA farm club to the Albuquerque Dukes (1972).
Split into simpler sentences: He became the Dodgers AAA Pacific Coast League manager in 1969 with the Spokane Indians (1969--1971). He remained manager of the AAA team when the Dodgers moved the farm club to the Albuquerque Dukes (1972).