Questions to Drop
I think you're not convinced by the answers partly because you didn't understand them. My fault for not being more clear. (1) When I said exercise is covered by the "real life issues" answer, what I meant is that one of the responses is "real life issues." Needing more exercise is a real life issue, therefore, someone who decided to leave because they needed more exercise will select that answer. Therefore, exercise issues are accounted for with another answer option (real life issues). (2) It would require a lot of questions to outline all the different real-life issues that would cause administrators to leave. Too many for this survey. (3) We can agree to disagree. (4) If you want to compare two samples, you have to ask the same questions to both of them. We can add more questions, or change questions, but added/changed questions can't be easily used for direct comparison of samples.
I agree that a separate health issues survey would be invasive and don't support building one at this time.