Wayne Curtis, vice president of partnership investments at Fannie Mae (Washington, D.C.), had to fundamentally rethink his approach to work when the company’s public finance business was added to his portfolio. Before, an agreement to extend a line of credit to a state or local authority for a 50-unit housing project might crystallize over a two-month period. But now on top of this responsibility was the fast-paced work involved in evaluating multibillion-dollar bond purchases.