OPM in charge of health insurance for the uninsured?

As you may have heard by now, many senators are proposing to back off of creating a government-run health care plan to cover uninsured Americans and instead want to task the Office of Personnel Management with running a smorgasbord of private health insurance plans that would serve Americans needing coverage. Senators appear to be modeling the idea after the existing Federal Employees Health Benefits Program (FEHBP), the health insurance program that serves about 8 million federal employees, retirees and their families.
Do you think that’s a good idea? Is OPM up to the challenge? Do you think such a plan might impact the FEHBP in some way?