Complex sentence: In 1979 John Mounsey became player-manager and he captained the Corinthian casuals to three successive league wins, he soon became the chairman at the club and was the first person to have been awarded a lifetime membership.
Split into simpler sentences: In 1979 John Mounsey became player-manager and he captained the Corinthian Casuals in three successive league wins. He soon became the chairman at the club and was the first person to have been awarded a lifetime membership.