Cross Functional Teams

In the early days of a startup, everyone is on one team; they’re all part of the same tight-knit family. Until the headcount reaches 15-25 – especially if they all share an office – it’s hard for any employees to be misaligned for too long.

Fast forward to when the organization grows to hundreds of people, or even thousands. Then the execs start making choices about how to organize; considerations like efficiency, career paths, dependencies all come into play.... more here http://www.mikebz.com/2015/01/cross-functional-teams.html