The major reason for the attrition is burnout from the work itself and the stress it creates..............you get absolutely fried.
You are right, Randy. It is a stressful job. But it is also very rewarding, in many ways. Many of the auditors that I personally hired in the 1992-1994 time frame are still around, working for us. One of the "secrets" is having a scheduling function that cares about the clients, but also the people doing the audits. Balancing the need of both parties. Another "secret" is the screening process to weed out auditor candidates that can not endure "life on the road". Actually, when I interview applicants, that is the first issue I discuss with them. As important as professional maturity, experience, knowledge, etc... is their ability to endure the business traveler's rat race.
Good auditors deserve their needs taken into account as well. If a CB fails to keep their auditors "happy", the end result is not only high turnover, but also stressed out and disgruntled auditors interacting with anxious and demanding customers leading to

.
That is one of the reasons I had created the
Does your Registrar have a high Auditor turnover rate? thread.
Most people don't realize how the CB business model, internal processes and respect for their auditors influence their experience, in the receiving end of an audit.