An RFP was issued in July seeking a firm to provide services for its approved bond proposals.
The county hired a firm for its more than $600 million portfolio.
The authority had been working with its incumbent investment manager since 2004.
The plan committed to two private debt funds at a board meeting last month.
Aristotle Capital Management expanded its investment team with two new hires
City is seeking a pool of investment managers for its accounts that have an aggregate market value of approximately $6.8 billion.
The plan will look to commit up to $400 million across two venture capital funds later this month.
The firm closed its ninth growth buyout fund with commitments totaling $7 billion.
The investment pool has selected a new firm to provide bundled provider services.