The plans initially hired the firm in 2014.
The plan is searching for a firm to provide consulting services for its $4 billion portfolio.
The promotions include a senior consultant appointment, three new v.p.s and a consultant appointment.
The fund hired its current investment consultant in 2016.
The plan has set a date for when it will launch its investment consulting services search.
The plan expects to issue an RFP for the services this month.
The authority has issued an RFP seeking investment advisory services for its 457(b) and 401(a) plans.
The plan is searching for its first ever non-discretionary private markets consultant.
Firm added a senior research analyst and a client analyst earlier this year.
The town hired a maiden consultant for its two retirement plans.