Three does seem to be the magic number for a moving an online news project along.
“Groups applying to work on this idea should include at least one person who can write well and rapidly about any topic, one or more programmers who are good at statistics, data mining, and making sites scale, and someone who’s reasonably competent at graphic design. These functions can of course be combined, and in fact it’s even better if they are. Ex-Googlers would be particularly well suited to this project.”