The plan also delegated investment authority to its executive director.
The retirement plan received three submissions to its RFP issued earlier this year.
The plans currently work with general investment consultant Callan.
The county is seeking the services on behalf of its $9.9 million 457(b) and $414,000 401(a) plan.
The plan added a pair of private equity commitments and another to a credit opportunities fund.
The deferred compensation plan replaced its domestic small-cap growth and international large-cap value equity managers last month.
The search is required due to state procurement law requiring an RFP every seven years.
The hires followed closed session deliberations.
The defined contribution plan replaced its international large-cap value equity manager, which had been on watch, in the second quarter.
The hire completes a review of the real assets portfolio that will now see it split evenly between one core-plus and two core managers.