There's a pretty big difference between an application that has 80% of the functionality and an application that fails 20% of the time. Carving up the function

There's a pretty big difference between an application that has 80% of the functionality and an application that fails 20% of the time. Carving up the functionality in a way that can be implemented independently is a delicate process and not solely the responsibility of the developers. It's also worth keeping in mind that the easiest way to solve a (jigsaw) puzzle is to start with the corner and edge cases.