The switch, which forms part of a raft of changes the team is making to help it return to the front of the F1 grid, will see Allison return to the role of technical director, while Elliott is to take up the position of Chief Technical Officer.
The bold change, which comes 20 months after Allison originally moved into the CTO position, has been prompted by Elliott concluding that the skills he had were not best suited to his position as technical director.
