breaking the Pareto principle?

quotes from http://howsoftwareisbuilt.com/2009/11/18/interview-with-greg-kroah-hartman-linux-kernel-devmaintainer/

To give an example, for the 2.5 to 2.6 kernel development series, which took about two years, the top 30 people did 80 percent of the work. Now, the top 30 people do 30 percent of the work. The sheer number of developers has also increased. We were running a couple hundred developers, and now we're running a couple thousand.

[...]

We're also increasing the rate of change in our development. The same amount of work one of the top 10 developers did last year wouldn't have even made it into the top 20 this year. Our individual developers have got the work flow down, so we can actually contribute more, to an extent that's amazing.