With the rapid changes in health care, radiology (like other specialties) has had to adapt to survive. Smaller practices have been acquired or consolidated with larger practices. This allows greater emphasis on efficiency, shared risk, and economies of scale. There is also a perceived sense of security that comes with the size of the organization. Larger organizations, in addition, have greater negotiating power with both providers and insurers. These practices have the ability to attract top-level management and administrative talent as well.