 This movement that involves secession from local dioceses or provinces and yet seeks to remain within the Anglican Communion has been criticised by opponents who claim that, under historic Anglican polity, such a move is not possible.The concept of alternative episcopal oversight first arose a generation ago with the debate over the ordination of women.At that time, the movement manifested itself as an effort to accommodate conservative parishes or dioceses that did not want to accept the authority of women consecrated as bishops or bishops who ordained women by providing pastoral oversight from a bishop who shared this theology.