SELECT
"Staff Demographic Data Historical"."Department",
"Staff Demographic Data Historical"."First Name",
"Staff Demographic Data Historical"."Original Hire Date",
CASE
WHEN "Staff Demographic Data Historical"."Department" = '1000-Central Office Staff' THEN TO_DATE('2023-07-31', 'YYYY-MM-DD')
WHEN "Staff Demographic Data Historical"."Original Hire Date" > '2023-07-01' THEN "Staff Demographic Data Historical"."Original Hire Date"
ELSE DATE_ADD("Staff Demographic Data Historical"."Original Hire Date", INTERVAL (business_days("Staff Demographic Data Historical"."Original Hire Date", today(), 1)) DAY)
END AS "23-24 Start Date"
FROM "Staff Demographic Data Historical"