He most recently served as executive director and cio of a neighboring Virginia plan.
He succeeds John Miller, who will retire on June 1 after nearly 30 years with the firm.
The plan hired a new global multi-asset credit manager and terminated its global multi-sector fixed-income manager in the fourth quarter.
The search is due to the upcoming June 30 of the incumbent.
The duo previously served on River and Mercantile’s industrial life cycle equity team.
The consultant will assist in conducting a record keeper search for the plan this year.
TRG first entered into a definitive agreement to acquire Ethos on Nov. 21.
The plan has launched a senior investment officer search for its emerging manager program and will divest from thermal coal and oil sands companies.
The plan is seeking to fill a position left vacant by Mike Barnhill, who joined the $76.7 billion Alaska Permanent Fund Corporation as coo last month.
The plan’s contract with incumbent Nationwide Retirement Solutions expires on Dec. 31.