People branch out all the time. Part of being flat is that there's very little division. If you are a programmer who has a good idea for a new workflow process

People branch out all the time. Part of being flat is that there's very little division. If you are a programmer who has a good idea for a new workflow process (i.e. management design), you propose it, and we usually try it. If you're a designer who want to learn more programming, we encourage it. You can easily have a big impact on all the other domains of the business even if you're just a programmer. Hell, we just had Craig Davey switch from being a programmer to being a designer recently!