The Design Department was divided into two sections; the Draughting Office, headed by Joe Smith, and the Technical Office, headed by Alan Clifton. Both Offices contributed to design with the Technical Office responsible for stress calculations and aerodynamics. Each new project was assigned a coordinator, for the Spitfire this was Alfred Faddy, but there was no team as such, as individual members of each Office contributed as requested. Supermarine were working on at least eight projects during the time the Spitfire design was being finalised, so they were quite stretched.