ObamaCare’s health insurance exchanges are currently set to start enrolling people in October. Or at least they’re supposed to. Recent comments from federal officials, however, involved in the exchange process do exactly inspire great confidence.“It’s only prudent to not assume everything is going to work perfectly on day one,” Gary Cohen, a Medicare official who is heading up the implementation process for the administration, recently told a group of health insurance industry insiders. Cohen’s colleague Henry Chao, who is managing the technology behind the exchange, told insurers he was “pretty nervous” about the start of enrollment. And while Cohen continued to insist that every state would have an exchange ready by October, he admitted that the federal government was making contingency plans, noting that “there is some possibility that the type of exchange may be different than what we’re looking at today.” A recent survey of health industry executives, meanwhile, found that 70 percent did not think the federal government would have the exchanges ready on schedule.