I honestly feel this is a good idea and I think a lot of groups should adopt this strategy. It really benefits both sides. Put someone on as a locum for a month of two to see who both sides work out. If it fails then both sides can part ways. If it works, then hire as a permanent. I say it takes a few months because I think it takes a few months for both sides to really get to know each other, the support staff, and the system.
I agree in theory, but how would this ever work in real life? Who quits their job in order to move somewhere, jump through all the credentialing/licensing hoops, and "hope" that everything works out after a few months? And if it doesn't? You'd have to do the whole thing over (and potentially over and over) until you find a situation that works for you. I think the only people who would take that kind of risk are people with no other options (fired, crazy, substance abuse issues, etc), so probably not great for employers either.
We generally have candidates we're serious about hiring come back at least a second time. Our interview process usually involves a phone call or series of phone calls. This is followed by "extreme vetting", when possible (firsthand feedback from trusted individuals, generally from our preferred residency program). Then, a first interview (day at the hospital meeting everyone, looking at workflow, plus/minus nice dinner to see them in more of a social context), a second interview if they're a good fit (similar to the first, meeting people they missed the first time, dinner with spouses if applicable), and an offer. This system seems to work well for us. I think recruiting primarily from a single program where we have numerous reliable contacts for frank feedback is the most essential factor in not hiring duds.
Regarding "don'ts", here are few things that led to a hard pass from our group:
-wearing a wife-beater and dress pants while sitting in a backwards-turned chair to "rap" with group-members in the office
-finding out you failed oral boards the night before you interview
-when asked about hobbies, staring transfixedly at your hands and talking earnestly at length about how you used to have many hobbies but now your hands are far too important to risk with any leisure activities
-getting "the wrong kind of hammered" at dinner
-being boring
- asking numerous questions about money, vacation, and "what time we get outta here" with no inquiries into clinical/administrative/social/interpersonal issues