>>"When a salesman is fired, move all of his customers to his manager". This prevents orphan customer records. This rule may change over time... such as
>>"When a salesman is fired, move all of his customers to the newest salesperson".
>
>Why would this be RI? RI means that a customer must have a salesperson, the bizrule is what has to succed to even get to the RI. Just a guess

"A customer must have a salesperson" is exactly what is expressed by the business rule above.