I'm at an Erlang company; it's hard to find people who already know Erlang, most of our server hires (including me) are smart people who are willing to learn a new language. Coming from a mostly PHP/Perl with a bit of C background, Erlang is weird, but it's a great fit for our use case. I haven't played with any other FP languages, but it seems like Erlang is more pragmatic than most, it's easy to have side effects, and the OTP libraries include a lot of useful stuff.
Anyway, we have enough non-core stuff (the mostly static website, resource translations etc) floating around that's not in Erlang that having people around who used PHP or Python in a former life is a good thing. :)