Nancy Williams was named principal at Ennis Knupp + Associates and leader of fiduciary audit services, including plan governance, organization structure and administration, effective Jan. 17. The position and the fiduciary audit services unit are new. Ennis Knupp plans to bid on searches for fiduciary audits and is building a team to work with Ms. Williams, looking internally and possibly externally for candidates, said Harmony Watling, spokeswoman. The size of the team hasn't been decided. Ms. Williams was national leader of the governance and policy unit of Mercer Investment Consulting. Prior to joining Mercer in 1994, Ms. Williams was deputy director and general counsel with the Public Employees' Retirement Association of Colorado, Denver. Stephanie Poe, Mercer spokeswoman, couldn't be reached for information on Ms. Williams' replacement.