He was translated to Hobart as Coadjutor in November 1954, and succeeded to the See on the resignation of Archbishop Ernest Victor Tweedy in September the following year. Archbishop Young's years in Hobart were distinguished by his leadership in the implementation of the reforms of the Second Vatican Council and his contribution to the liturgical renewal of the Church, both at the local level and through his appointment in Rome, first to the papal commission for the implementation of the Sacrosanctum Concilium, and later to the Sacred Congregation for Divine Worship.