In those days, every motor racing team effectively had three engineering disciplines: the design and aerodynamics offices, and race engineering, though the race engineers would be doubling up with working in the design office during the week. Since then, the industry has mushroomed, and nobody crosses from one department to another. You’ll have, let’s say, 90 people in aerodynamics, another 70 in the design office, and perhaps 30 in race engineering and simulation, the latter being a relatively new area.