The demand for the dismissal of Glen Grell, the executive director, and Jim Grossman, the chief investment officer of Pennsylvanias $64 billion Public School Employees Retirement System, came hours before a scheduled meeting of the board Thursday, which both officials would normally attend. Trustees of Pennsylvanias largest public pension on Friday backed off from voting on almost $1.1 billion in new fund commitments amid disagreement over the systems leadership and its use of high-cost private investments. Six trustees of the largest public pension in Pennsylvania are demanding the ouster of two top staff members, citing years of poor investment performance, high expenses and missteps that led to a federal investigation. No action was done regarding the letters demands at a meeting Thursday, but the meeting is set to continue tomorrow. All the transactions were recommended to the board by the pensions investment staff...
not all trustees of the systems backed down.
( z0 back :ARG0 ( z1 person :ARG0-of ( z2 trust :ARG1 ( z3 system ) ) :mod ( z4 all :polarity - ) ) )
(z0 / back-02
    :ARG0 (z1 / person
              :ARG0-of (z2 / trust-01
                           :ARG1 (z3 / system))
              :mod (z4 / all
                       :polarity -)))
not all trustees of the systems backed down .
z4 :polarity 0
z1 :mod z4
z1 :ARG0-of z2
z2 :ARG1 z3
z0 :ARG0 z1