Article Photos: Vanguard's Gus Sauter, at a glance 1/1

This undated handout photo provided by Vanguard shows George âGusâ Sauter, chief investment officer of Vanguard. Sauter, 58, is retiring at year-end after 25 years with Vanguard, the largest mutual fund company.  While founder Jack Bogle became the public face of Vanguard, Sauter helped turn Bogleâs vision into business success, expanding the companyâs lineup of low-cost index mutual funds and continually minimizing investorsâ costs. (AP Photo/Vanguard)