Employees, patients, and community leaders said they are wary but hopeful after learning that the Massachusetts-based Caritas Christi Health Care system has agreed to be acquired by a New York private equity firm. But state regulators said the complicated approval process will probably stretch into the fall. Others said they were uneasy about the prospect of the hospitals being under the control of a firm that typically snaps up underperforming companies, improves their operations, and sells them at a big profit for investors, the Boston Globe reports.