Initially Cohn’s notion was that Citi should buy Goldman; he had even established an asking price. But Warsh suggested that Cohn approach it the other way around: Goldman should be the buyer. To Cohn that made no sense given that Citi was so much bigger. But what Warsh knew—and hadn’t yet shared with Cohn—was that Citigroup’s balance sheet had so many holes that its value was likely a lot lower than its current stock price.