One record, many hands
Every feature works from the same membership list. When the treasurer records a payment, the member’s renewal is up to date for the secretary. When the registrar issues a log book, it sits on the member’s vehicle. When a member lapses, the registrar can see straight away whether they still hold a log book. Nobody has to copy anything from one spreadsheet to another.
Each committee member sees only what their role allows, and every change is recorded in the activity log, so sharing the work does not mean losing track of it.