Handling Multiple Interviews Recently, I applied for two positions at one university. I received a quick reply for a video interview and immediately thereafter the campus visit. Right after my campus visit, I got a call back on the second application. After much deliberation, I recinded the application for the second position interview. Is this appropriate? Is there etiquette for applying to one or two positions at the same institution?
Nobody would fault you for pursuing any promising job offer, even if two are at the same place. (If they're petty enough to be upset with you for this then you wouldn't want to work there anyway.) If you've already rescinded the application they're not going to be upset with you for that either. These are regular problems faced by departments doing job searches. 

Some institutions might have an internal arbitration process that would have to happen if both departments want to make an offer. This is to avoid a situation where you try to use offers from both departments as leverage for better compensation or a startup package.