The plan approved $350 million in commitments with GPs at a meeting last week.
The plan named two firms to manage $450 million total.
The plan issued an RFP in December for a firm to manage a $350 million mandate.
The new position will help oversee a total portfolio approach.
The retirement system has a 6% target to hedge funds.
The retirement system is seeking a firm to manage a $15 million mandate.
The plan rehired its current provider in 2017.
The retirement system also concluded its real estate search for debt, opportunistic and value-add managers.
The plan committed to a fund specializing in aerospace and defense earlier this month.
The retirement fund added a dedicated 5% allocation to the asset class earlier this year.