"The project management techniques that Google does use are more like oil than fuel: things to let the project keep running smoothly, as opposed to things that force the project to move forward. There are plenty of meeting rooms, and there's plenty of open space for people to go chat. Teams are always situated close together in fishbowl-style open seating, so that pair programming happens exactly when it's needed (say 5% of the time), and never otherwise.
Google generally recognizes that the middle of the day is prone to interruptions, even at quiet companies, so many engineers are likely to shift their hours and come in very early or stay very late in order to find time to truly concentrate on programming. So meetings only happen in the middle of the day; it's very unusual to see a meeting start before 10am or after 4:30pm. Scheduling meetings outside that band necessarily eats into the time when engineers are actually trying to implement the things they're meeting about, so they don't do it.
Google isn't the only place where projects are run this way. Two other kinds of organizations leap to mind when you think of Google's approach: startup companies, and grad schools. Google can be considered a fusion of the startup and grad-school mentalities: on the one hand, it's a hurry-up, let's get something out now, do the simplest thing that could work and we'll grow it later startup-style approach. On the other, it's relatively relaxed and low-key; we have hard problems to solve that nobody else has ever solved, but it's a marathon not a sprint, and focusing requires deep concentration, not frenzied meetings. And at the intersection of the two, startups and grad schools are both fertile innovation ground in which the participants carry a great deal of individual responsibility for the outcome.
It's all been done before; the only thing that's really surprising is that Google has managed to make it scale.
The scaling is not an accident. Google works really hard on the problem, and they realize that having scaled this far is no guarantee it'll continue, so they're vigilant. That's a good word for it. They're always on the lookout to make sure the way of life and the overall level of productivity continue (or even improve) as they grow.
Google is an exceptionally disciplined company, from a software-engineering perspective. They take things like unit testing, design documents and code reviews more seriously than any other company I've even heard about. They work hard to keep their house in order at all times, and there are strict rules and guidelines in place that prevent engineers and teams from doing things their own way. The result: the whole code base looks the same, so switching teams and sharing code are both far easier than they are at other places.
And engineers need great tools, of course, so Google hires great people to build their tools, and they encourage engineers (using incentives) to pitch in on tools work whenever they have an inclination in that direction. The result: Google has great tools, world-class tools, and they just keep getting better.
The list goes on. I could talk for days about the amazing rigor behind Google's approach to software engineering. But the main takeaway is that their scaling (both technological and organizational) is not an accident. And once you're up to speed on the Google way of doing things, it all proceeds fairly effortlessly — again, on average, and compared to software development at many other companies."
(Stevey's Blog Rants)