There are plenty of good places outside the top 50. Some will have smaller faculties, and so you need to make sure that your interests match. Here at USC, for example, you'd be mad to come to study Theory- in fact, we wouldn't let you in because masochism is hard to watch- but it is great for any number of other things: China, Congress, Post-Soviet stuff, Middle East, non-proliferation, law and public policy, IR Theory etc. If you have a match, then check out the last few years of placement. Now this isn't meant to be a commercial for USC, but it is what I know. We've got recent PhDs at Oregon, Oklahoma, Baylor, U-Mass, New Mexico, Florida etc. And post docs at Brown, Florida etc. And that placement rate will get better as the program has got more competitive. Again, I am sure that other schools ranked similarly have done similarly well. It's just to knock on the head the idea that you can't get a great R1 or liberal arts placement from somewhere not on the USNWR radar (although the NRC rankings were kinder to us).