How can something be "new" and "improved"? (If it's new, what was it improving on?)

Take cars for example, they started off pretty slow and as time when on the became faster with more features. And as more time went on cars stopped using so much fuel and electric cars came out not damaging the environment as much.

Explanation:

Hope this helps

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.