Everyone, it seems, agrees that teamwork is a good idea. Certainly, the owners and coaches of athletic teams believe it. And, undoubtedly, so do many of America's corporate executives and managers. People are more effective when they function as a team than when they behave as a collection of isolated individuals.
Teamwork is a very desirable behavior among individuals with a common goal.
According to the Theory of Constraints, they are. The sales department can make a sale, but without the cooperation of the distribution department the customer would never get the product. Without the collaboration of manufacturing there would be no product to sell. Without the timely contribution of engineering, manufacturing would have nothing to build. So, yes, teamwork among the organizations that form a corporation is not only desirable, it is an absolutely necessary condition for success.