Wow. I was really tired and not too diplomatic when I typed that post, last night.
I hope I'm more tactful today.
My point about the staffing was/is that, in the franchise studios I've attended, new teachers are hired off the street and trained to become beginning ballroom instructors. They make very low salaries -- close to minimum wage -- plus commission on sales of packages. The bulk of the gross income goes to the studio, to defray operating expenses, etc. The new teachers,who may have had a couple of months training, take on beginner students.
We could have a long,long discussion about whether this is fair to the students. I've had this discussion many, many times.
But what I've found is that, in forums like this one, many people think that beginner teachers do students a disservice. Regardless of how you feel about that issue, the bottom line is that, with the pricing model that franchises have (that I know of) I think it would be difficult to afford to pay big name competitive dancers who have name recognition.
The successful studios I know that have such teachers are generally independent studios who hire experienced teachers as independent contractors, rent teachers floor space to give lessons, and take a cut for themselves.