It is true and it actually aids modularization. Teams have natural tendency to produce separate modules from other teams so that they can manage their developm

It is true and it actually aids modularization. Teams have natural tendency to produce separate modules from other teams so that they can manage their development process more effectively. Then you can consider individual team members working on their own modules. In this case the modules also can be a reflection on how the task was delegated to the team because how you split the task between multiple team members may end up how the boundaries between modules were designed. But it does not necessarily have to be this way. Design decisions should be made consciously and selecting how to break up your application into modules is an important design decision.