The Amazon model to addressing this problem is to minimize to the greatest extent possible both team size and inter-team communication. The ideal team is charac

The Amazon model to addressing this problem is to minimize to the greatest extent possible both team size and inter-team communication. The ideal team is characterized by 5-8 engineers who collectively design, build, test, deploy, and own in production a service exposed to the rest of the company only through API calls over the network. This mostly addresses the coordination problem because teams shouldn't need to coordinate, and it mostly addresses the contention problem because almost every decision is entirely owned within a particular team with no expectation that they consider external input.