Complex sentence: He subsequently joined Orient, where he spent eight seasons, and was a member of the Orient side that won the Third Division title in 1969-70, and narrowly missed out on promotion to the top flight in 1974.
Split into simpler sentences: He subsequently joined Orient, where he spent eight seasons. He was a member of the Orient side that won the Third Division title in 1969-70, and narrowly missed out on promotion to the top flight in 1974.