also when you get a team with a very definate number one driver who has a very distinctive driving style and handling preference the car can become designed in such a way that its charecteristics can put the number 2 at a huge disadvantage if he is unable to adapt to it, especially ifthe team is unable or unwilling to produce a different setup to suit the number 2. put him in a different team with a different design philosophy and he can suddenly look like a different driver