Sadly, you are correct. I wouldn't call it scummy because it makes it sound conspiratorial, but for most busy managers it's easier to hit their friends and colleagues for hires than it is to hit a job site. Digging through hundreds of submissions and making calls is very time consuming. Sure there are recruiters but your first and easiest choice is to call up people you know. Maybe you can hire them, a known entity with a skill set you know it's there, or they can recommend someone. It's not fair, but once you're in s hiring position I can guarantee that you will do the same. Cold recruiting is just a pain in the ass

If you are stuck with only job sites, there are ways to better your odds. The odds still suck, but they can suck less.