Ralph: Incorrect PIN freelance writers In the next phase of the case, the city must prove that itis insolvent. The city will also have to prove it made agood-faith effort to negotiate with its creditors or that thereare too many creditors to make negotiating possible. In hisinitial court filing last week, Orr said the pool of potentialcreditors, including current city workers, retirees, andbondholders, is vast.