One of Immelt’s primary concerns, however, was what would happen if its adviser, Goldman Sachs, went out of business. General Electric was more about manufacturing than financial engineering, but roughly half of its profits in recent years had come from a finance company unit called GE Capital. Like most Wall Street firms, GE Capital relied on the short-term paper market and the confidence of investors worldwide, and Immelt was worried about how the fate of Goldman and Morgan Stanley might affect it.