This, however, is like playing baseball and a tennis doubles match with the same people, on the same field, and at the same time. It can only result in frustration and nonperformance. As such, each team design has its own uses, its own characteristics, its own requirements, its own limitations. Wherever people work together or play together they do so as a team. Which team to use for what purpose is a crucial, difficult, and risky decision that is even harder to unmake.
Managements have yet to learn how to make it.
From Managing in a Time of Great Change by Peter F. Drucker.