The author begins with remarks that Pope Francis makes regarding the situation of profound crisis of faith in the society in which the Church currently lives and operates and so on the need for a pastoral and missionary conversion of all the structures of the Church in order to encourage a new evangelization. This process of renewal finds application in the reform of the Roman Curia brought about by the apostolic constitution Praedicate evangelium, a reform that becomes exemplary for the reform of diocesan curias by the diocesan bishops. The first application in this exemplary manner occurs with the apostolic constitution In Ecclesiarum communione, which seeks renewal in the vision of the Vicariate of the Diocese of Rome and in the reorganization of its structures and its functioning in a synodal sense. In this way the renewal of the Vicariate of Rome becomes exemplary for the reorganization of the diocesan curias. The author shows which bodies in the Vicariate of Rome have been reorganized and how this reorganization, with the necessary adaptations, can be applied also in diocesan curias.