While Greece scrambles to pass legislation due Wednesday for the right to a third bailout, the euro zone is searching for ways to help the country avoid defaulting on more debt repayments.
But counting on the Greek parliament to pass measures many consider to be harsher than those rejected in an earlier referendum might be a dangerous assumption, according to Standard & Poor's head of sovereign ratings, John Chambers.
"It was a proposal that went beyond what was rejected in the referendum last week by 61 percent of the Greek population," he said. "There is very little popular backing for this.... I don't think there's any good solution at this point."
It's precisely that reasoning behind the agency's "CCC-" rating on Greek bonds, indicating a risk to commercial creditors that remains quite high, he said.
But not all of the obstacles remaining around Greece's debt relief fall on the country's shoulders.