The plan is seeking investment staffers for its public markets and private markets portfolios.
The authority is seeking firms to form a privately held debt fund.
The plan terminated the manager during closed session of its meeting last week.
The promotions come ahead of the retirement of current CIO Dale MacMaster.
The plan rehired the manager today following interviews with two other finalists.
The firm has added a managing director to focus on new product innovation and growth.
The district is seeking a firm to administer its 457(b) and 401(a) plans.
The plan is set to discuss private equity, infrastructure and private debt in either March or April.
Plan staff and the general consultant expect to provide educations on private debt and infrastructure in the second half of the year.
The plan will look to commit up to $50 million to infrastructure managers either through existing relationships, MWDBE managers or through a search for products in the market.