I agree about making an effort looking for people. I know nothing about the company being discussed here. But for other companies, I know some that contact a (crappy) headhunter or two, or who post an ad on Craigslist, and then expect top tier candidates to roll in. For some CRUD job working in class C office space for relatively not much money etc. They're shocked when they don't have their pick from dozens of top tier candidates.

If your methods don't work - try going to a local programmer meetup. Chat up some of the programmers. Encourage them to apply. I go to programmer meetups as a programmer, and all the time I meet other programmers who are out of work, or who are unhappy at their job and looking to work elsewhere. Most are employed, but there's always a few who are looking.

What is happening is this - in 2008/2009 the economy was tighter, and employers could get by with a CL posting, or talking to a headhunter or two. Now that unemployment rate is less than 10%, you don't have dozens of good programmers checking CL for jobs every day. You have to do a little more work to find people. Just like THEY had to do a little more work when unemployment was double digit.