How do communication and interdisciplinary collaboration prevent adverse events?

In the assigned article, “Core Principles & Values of Effective Team-Based Health Care”(http://www.iom.edu/Global/Perspectives/2012/TeamBasedCare.aspx) the authors state that “the incorporation of multiple perspectives in health care offers the benefit of diverse knowledge and experience; however, in practice, shared responsibility without high-quality teamwork can be fraught with peril.” Describe the perils that the authors say lead to uncoordinated care and unnecessary waste and cost. How do communication and interdisciplinary collaboration prevent adverse events?