It's not a matter of if we're going to go to Mars, it's a matter of when.

I think it true that, you know, sometimes things start to change even before a government changes and, actually, I think you can begin to see even the Labour machine beginning to understand that it has become over-reliant on targets and processes, that local governments have been over-bossed and bullied.

It doesn't help at all for just one person to go. You have to fundamentally change the organization.