The new vendor change approval framework is good but probably the most critical piece of vendor data is not included in the available fields. Changes to vendor bank account fields like account number are one of the most common way fraud can be undertaken.
Currently the Bank account option tracks changes to the default bank account selected on the vendor master so that may catch really stupid fruadsters but an employee who can edit a bank account record to change account data is far more critical to need change control.
Please extend the framework and you will have happy Financial Controllers and Auditors.

Thanks,