Pope John Paul II raised the question of how to reform the papacy in order to better fit the new ecumenical situation of the Church. In response to this appeal, Archbishop John R. Quinn said that the doctrinal dialogues are not enough. The hope of Christian unity can not rely solely on the experience of doctrinal convergence. There must also reform within the Catholic Church reform in the manner of exercising the papal ministry and reforms especially in the Roman Curia and in the methods and practices followed by it. Following the guidelines set by John Paul II in his Encyclical Ut unum sint, Archbishop Quinn examines the structures and practices of the Church of the first millennium as an important key to these reforms. For readers interested in the current situation Catholic theologians and theology students.