This summary is not the rule. The rule text controls.
The Oklahoma Bar Association's Board of Governors can hire additional staff whenever they think it's needed. This gives the Board flexibility to bring on employees beyond any specific positions already listed in the rules.
The rule doesn't limit what kinds of jobs the Board can create or how many people they can hire. Instead, it leaves that decision up to the Board's own judgment, based on what the organization needs to run smoothly.
For everyday members of the bar or the public, this simply means the Bar Association has the power to staff up as necessary to handle its work, without needing special permission or a rule change every time it wants to add a new position.