Sean Goedecke:

This is why tiny software companies are often much better than large software companies at delivering software: it doesn’t matter that the large company is throwing ten times the number of engineers at the problem if the small company is twenty times more efficient.

Why don’t large companies react to this by doing away with all of their processes? Are they stupid? No. The processes that slow engineers down are the same processes that make their work legible to the rest of the company. And that legibility (in dollar terms) is more valuable than being able to produce software more efficiently.