John Rekenthaler has been named president of Morningstar Inc.'s online...

John Rekenthaler has been named president of Morningstar Inc.’s online investment advice business unit, replacing Jim Wironen, who headed the unit until last fall. Mr. Rekenthaler was vice president of research for Morningstar Associates LLC, the Chicago-based subsidiary of Morningstar that had offered the defined contribution investment advice service. Mr. Wironen was vice president of marketing.