Ally Financial Inc. is cutting back significantly on its wholesale mortgage business and moving away from its correspondent and broker channel so that it can focus more on originations through the retail and direct channels. In recent filings with the Securities and Exchange Commission, Ally said the shift to the higher-margin retail and direct channels will not have a significant impact on profitability overall if both channels can assume the current volume of government-backed mortgages coming through the correspondent and broker wholesale conduits. “We will continue to evaluate this...