The underlying principle of the CIN is that it enables more effective, coordinated care, and that this is better for the patient. One of the strongest appeals of the CIN is its flexibility. CINs can include many forms of hospital-physician models—academic practice plans, employed physician groups, independent physician groups, and ASCs—as long as they adhere to legal requirements of a CIN. CINs increasingly include the full range of care options, including pre- and post-op services. In order to fulfill the legal requirements of a CIN, the network must develop and follow common approaches to delivering care (for example, ophthalmic surgery in an ASC).