I guess if you wanted Scala programmers (and for the long-term, not just a 3 month contract) you would hire for Java programmers as a) there's a lot more of the

I guess if you wanted Scala programmers (and for the long-term, not just a 3 month contract) you would hire for Java programmers as a) there's a lot more of them so the talent pool is larger, b) teaching a Java guy/gal Scala isn't going to be difficult, and c) they may be cheaper to get (a pure guess)?