The plan will vote to approve searches for intermediate fixed-income funds and global allocation managers.
The $1.9 billion transaction is expected to close early next year.
The search would be conducted in early 2022.
Plan’s investment committee approved a pair of real assets commitments subject to full board approval next week.
Organization intends to invest $200 million in diverse-owned and led private equity firms raising first or second funds.
The plan will interview three finalists at its October board meeting.
The retirement comes more than five years after AndCo’s acquisition of Thistle Asset Consulting.
Ash Williams will retire from the $252.8 billion fund at the end of September.
They will provide investment analysis of emerging market equities.
Plan hired a new active domestic small-cap value equity manager to replace an index fund investment this week.