This is primarily because of each team work in isolation.The Silos created by the imaginary divisions in an organization for the better focus have been instrumental in directing efforts in non collaborative ways.
This is prevalent in most of the organizations across the world.As a result every team is striving to achieve its own goals and this though unintentionally pulling the organization in multiple directions and thereby derailing and defocusing from the chosen goals.
One argument can be that Silos help creativity.That can be true to some extent but even creativity requires people to talk about their ideas ,bounce them off to other teams for non biased views.
Meeting of the minds of the team heads is useful but breaking breads among the members of the various team is more important.This helps in understanding of the common goal and marching towards it by helping each other.The interpersonal skills is one area which benefits the maximum and delivery improves as nobody will try to out do each team as there is now a common goal.
As they say "No man is an island entire of itself; every man is a piece of the continent, a part of the main…"
