The plan hired a passive international equity manager to replace an active mandate in May.
A foundation based in the Midwest allocated to an emerging markets equity strategy with a focus on sustainability last year.
The retirement plan is screening for managers in the securitized credit, short-term investment grade and bank loan asset classes.
The plan also disclosed two new commitments.
The plan also retained two emerging market fixed-income managers.
The searches come as the plan looks to increase the amount of active management in its global equity and U.S. small- to mid-cap equity portfolios.
The pension plan funded its second separate account mandate for the global equity emerging manager program in June.
The fund will interview three finalists at a board meeting this month after narrowing its international equity manager search from 15 total proposals.
The retirement plan replaced its domestic core-plus fixed-income manager following a bond manager review in May.
The plan will move the assets from the underperforming manager to cash for use in making benefit payments.