Or to put it another way: There is a time when every feature fits in one team. There is also a time when any given one single feature grows too large for one te

Or to put it another way: There is a time when every feature fits in one team. There is also a time when any given one single feature grows too large for one team. Recognize which time you're in and make the best choice for now (and some of your expected future). If everyone designed everything with the expectation of Facebook levels of traffic, nothing would ever get done (your team isn't big enough), and that overhead would be wasted in 99.9% of cases.