Earlier quoted context omitted.
Even if they could "locate" the engineers, that doesn't mean the engineers will want to work for the companies paying.
Who would rather stay unemployed than take an engineering job?
SaaS and tech consulting are really trendy right now because there are a lot of successful role models for these things. That said, a lot of magnificent failures and wannabes...but that comes with anything.
Add to this the fact that the companies who really understand how valuable good, skilled engineers are will make generous offers with benefits and vacations and conferences and food and luxury and and and...and you see why it becomes difficult to find the really sexy workers.