David both the Inventational and Open are Pro events, the volunteers are from the chairities that recieve funds from the event.
The person put in charge had run the event before that job was given to Tracy. Tracy and her group wanted complete say in how the Royal BBQ was run and the folks she worked for were not willing to give Tracy's group that much power. They are running a competition at Kansas Speedway on May 28th and 29th.
PS I first heard about this back in Oct, they moved fast once they left.