Goal Approval 6 rules- what is the best way

Summary

Goal Management

Content

Hello,

I've a requirement - there are 3 business units they want to have auto approval of goals and other BU they want to have management Hierarchy ... what is the best practice --

Create 6 rules: or something else

BU==A --> Auto Approve

BU==B --> Auto Approve

BU==c --> Auto Approve

BU!=A --> Mgmt Hierarchy

BU!=B --> Mgmt Hierarchy

BU!=c --> Mgmt Hierarchy

There could be something else to satisfy this requirement...