Pulled in two directions. Providers pursuing coordinated care confused by antitrust actions.

Providers pursuing mergers to better coordinate care for patients are becoming exasperated by antitrust actions, saying recent FTC cases have left them confused. "You can't know ahead of time whether something is or is not OK. There are certain extremes where you can know if something is extreme or perfectly OK, but there is a wide range of possibilities in between," says Dr. David Pate, left, of St. Luke's Health System, Boise, Idaho.