My SO found a job really just through pure effort. She decided she was going to find a job (as a lawyer!) in Michigan pretty much on the fly and she did it. She applied everywhere, went to all the ABA meetings and found a job within a couple months. Right now she's way busier than I am and is getting paid a very respectable salary (even by TLS standards
Other SOs that I know of have jobs ranging from people working in college admissions at U of M to accountants to folks who decided to get grad degrees on the fly. There are also people who have a job elsewhere that telecommute.
I'm not going to lie and say that spontaneously finding a job is easy. However, it's not clear to me that the job market here is THAT much worse than anywhere else (since the whole country isn't doing that great) for people who are educated and aren't looking to work in auto manufacturing or something of that sort. It's also important to separate out Ann Arbor and this area from Detroit and what's going on over there. Obviously as a whole, Michigan is one of the worst economies nationwide and has a lot of negative headlines coming out but you want to look at how that info applies.
Here's the tricky thing. I personally don't think you can determine how easy it is to find a job within a particular industry unless you actually do a legitimate job search that goes beyond just making a few calls. I think the only way to know is to really make a serious effort at getting a job and seeing what pans out. I think it's going to depend on how tenacious and flexible your SO is willing to be. The one hitch for my SOs job is that she has a 50 minute commute each way every day. Sometimes things aren't perfect but they're good enough.