The problem is not only with communication between end-users/management, it's also a problem with communication between teams -- for the same reason. Because o

The problem is not only with communication between end-users/management, it's also a problem with communication between teams -- for the same reason. Because of the huge amount of complexity described, it becomes impossible for one developer -- or one group of developers working on the same project -- to understand at one time much more than their current specialization. This makes it hard to talk to peers working on other projects.