In 1975, there were only two priests of the Assumption Order still at the Becket school; the headteacher, Father Roger Killeen and his bursar. At that time, the Order gave The Becket School to the Diocese of Nottingham and the two schools, The Becket and Corpus Christi, were amalgamated. The heads of the two schools, Father Roger and Mr Arthur Davis, who were in post at that time gave up their headships to enable the amalgamation to go ahead. A new headteacher, Terence Dillon, was appointed to the new school in 1975 and carried out the bringing together of the two very different institutions into one successful school. The school governors decided to call the new school The Becket Comprehensive School, though the term Comprehensive has rarely been used. The new headmaster took on the challenge of creating one school, whilst some parents of the former Becket School endeavoured to resist any changes as they sought to protect the privileged position of their sons. The new headteacher managed to bring staff together on the two sites of the former schools and created a school which became pre-eminent in Nottingham during the 1970s and 1980s and continues to hold a favoured position. Terence Dillon moved from the school in 1984 to become one of Her Majesty's Inspectors of Schools. The buildings of the original schools were demolished in the summer of 2012 to be replaced by a brand new school on Wilford Lane.