> But what if those two are busy right now?
Then he'll have to look up some that he can't name off the top of his head? I can't name any Java consultancies, but I'm nonetheless confident that there are plenty...
With regard to Haskell, there are a lot of people interested in Haskell work compared to the number of positions presently available.
Compare with how many Java consultancies do you think you can find on a quick search?
I don't think the Haskell development labor market is nearly liquid enough to rely on consultants. For full time jobs the picture is very different.