Have you heard of the Law of Start Up Physics?

Quote: “I started noticing patterns in startups — which I’ve validated with executives and VCs over the years — that how companies scale and break matches military groupings. So, the most efficient group in the military is a group of three, then a group of eight, and then three groups of eight, so 24,” says Halim. “Look across companies and you’ll see that around 24 people, someone speaks up to say, ‘We need a manager.’ If a startup makes it to 48 people, the next break is often in HR. And so on. As they scale, companies have more predictable breaking points.” End quote 

http://firstround.com/review/hypergrowth-and-the-law-of-startup-physics/?utm_campaign=pockethits&utm_medium=email&utm_source=pocket