Williams was not available to work on the ACE because he had already accepted a professorship at the University of Manchester, and most of his circuit technicians were in the process of being transferred to the Department of Atomic Energy.
Williams non estaba dispoñible para traballar na ACE xa que tiña aceptado un posto de profesor na Universidade de Manchester, e a maioría dos seus técnicos de circuítos estaban en proceso de ser transferidos ó Departamento de Enerxía Atómica.