I agree with the general principle that Ankle Breaker is advocating, i.e. be realistic about where you clerk. But remember, the reason why we do clerkships in the first place is to learn, not to play politics in the residency hunt. Generally, the good programs will challenge you and teach you more, and you'll be smarter and better prepared to interview. Spend your year at average to below average programs and you might not learn a thing. That's the balancing act you have to perform.
The other thing to worry about is that there are quite a few bad programs out there. If you match into a program that will give you poor training, you're just stalling your problems 3 years, though I can't speak with so much authority on the job hunt, and I imagine a residency graduate willing to move would ultimately have no trouble finding gainful employment.
So to bring this home for the OP, these are the risks that you would face in podiatry. I recommend a thorough exploration of your options, because there is a lot you can do in healthcare. If you do decide on podiatry, good luck, because, as my classmates who matched at Sacred Heart Hospital have discovered, [bad] luck is major factor.