Review what equity is and make sure that thier PB process is mapped to equity indicators. There are really great indicators that come out of Seattle.
Here is the city of oakland's equity indicator report: https://cao-94612.s3.amazonaws.com/documents/2018-Equity-Indicators-Full-Report.pdf
here is a powerpoint presentation from the city of Seattle: https://www.seattle.gov/Documents/Departments/SeattlePlanningCommission/MinutesAndAgendas/CompPlanEquityIDPsandIndicatorsOPCDPresentation02252016.pdf
There is a really great one pager that the City of Oakland uses that I think could be a tool adapted for our use with instructions and measurement guidelines