Cigna Group said it will tie its executives' pay to customer satisfaction in a move that follows an outcry against the insurance industry over denials of care. The change is the start of what Cigna called a yearslong effort to improve customers' experience and "ensure accountability," the company said in a statement Monday. Health insurers are responding to widespread anger at the industry following the December shooting of a UnitedHealth Group Inc. executive. Insurers have long defended their practices, but some companies have recently shifted toward acknowledging problems in the healthcare system.