Moses left his position in May 1960. No park commissioner since then has been able to exercise the same degree of power, nor did NYC Parks remain in as stable a position in the aftermath of his departure. Eight commissioners held the office in the twenty years following his departure.[186] The city experienced economic and social changes, with some residents moving to the suburbs.[187][188] Interest in Central Park's landscape had long since declined, and it was now mostly being used for recreation.[189] Several unrealized additions were proposed for Central Park in that decade, such as a public housing development,[190] a golf course,[191] and a "revolving world's fair".[192]