    Sentence 1: Sean Harrigan , president of the Califomia  Public Employees * Retirement System , also qggested  paring down the NYSE ‘s 27-member board , changing its  ‘composition and making it more accountable.    Sentence 2: Sean Harrigan , president the California  Public Employees ' Retirement System , also suggested  paring the NYSE 's 27-member board and allotting more  seats to investors outside the secunties industry.