I would be really, really interested to see an organisational chart for a F1 team. I've been braking my head about what the heck 250 people can do for one F1 team.
Always have wondered that myself. I understand how the likes of McLaren, Williams have engineering departments that go beyond F1, and motorsport, but still. They are building parts of effectively 2 cars. There are a few extra complete chassis built, as well as a few dozen replacement parts of each thing, but how many people and how much times does that really take?
It has to be from the testing and now simulation teams. You have dozens of people at the shop just running tests on new parts and designs. R&D is the big cost of F1. That front wing a team introduces at Spa, or wherever is probably the 10th-15th version of a test wing that has finally been given the green light by the head engineer and team principle to go on the car.
It's like many industries though. You have man people probably just standings around. They have a small job that requires little amount to actually finish on a daily basis.