The decision to transition the plan follows an investment advisor RFQ launched earlier this year.
The state pension fund is seeking an analyst to collaborate with its investment team.
City staff has managed the $400 million portfolio since 2012.
The district hired a new firm to provide investment management services for its roughly $116 million in investments.
Paul Kolevsohn has joined Stockbridge as managing director to lead investment research and strategy.
Periscope Equity closed its third fund with aggregate commitments of $370 million.
The plan interviewed three core real estate managers in June to replace an incumbent manager.
The city has issued RFPs seeking investment advisory and record keeping services for its $57.6 million 457 plan.
The retirement board also hired a new private equity advisor at its investment committee meeting today.
Frazier Healthcare Partners has made several additions and promotions to its team.