Larry D. Zimpleman was appointed president of retirement and investor services at Principal Financial Group, Des Moines, Iowa, with responsibility for U.S. and international asset accumulation and for Principal Bank. He was vice president, and won't be replaced. The move is part of a realignment of the firm, which dissolved its distribution unit; each division now will be responsible for its own distribution platform. As part of the reorganization, Michael Daley, executive vice president in charge of distribution, left. His plans were not known.