obamacaresign

Federal and state officials are preparing to launch the health law’s insurance exchanges on Oct.1. But while most attention is trained on federal Health secretary Kathleen Sebelius, there are many others behind the scenes playing important roles in setting up the health exchanges, preparing for the Medicaid expansion and trying to get the public on board.

The Affordable Care Act (ACA) has been called one of the most complex government undertakings in a generation. It will touch almost every corner of the U.S. healthcare system and define that arena for the foreseeable future.

Here are 10 key players to watch as the law is implemented.