The searches stem from a new asset allocation and international equity structure review approved in February.
The plan is seeking managers to handle a total of $135 million.
The position had been vacant since September.
The plan also received a private credit pacing plan at its meeting yesterday.
The retirement system made commitments to one firm for private equity and private debt.
The plans are seeking a firm to provide a full range of investment advisory services.
The searches are for buyout, growth equity and venture capital strategies.
The retirement system committed $500 million to four existing managers.
The plan will move the assets with the state investment trust.
The plan put in a full redemption request with its sole real estate manager.