Most job seekers on LinkedIn wait to be contacted about an open job. They're all waiting for the inbound call instead of digging into the hidden job market to find jobs that aren't even open yet.
Most growing companies budget in advance the hires they need to make for a whole year. For example, if a company plans to hire five people in the coming year, or 50, or 500, they can't absorb them all on January 2. So, they budget a few roles …
Source: Recruiter