Why Are HR Managers Unable To Source For Candidates To Fill In Company's Open Positions?

 What are HR Managers doing that they leave the screening job to Recruiters? Are Recruiters able to ensure good candidates can work for company forever? Or bad candidates can become a better employee after they secure a job? Among 10 candidates, only 1 selected for the role? What's happen next? Without Recruiters, HR managers cant find candidates to fill in company's roles?

 Cushie Jobs is here not just only as Recruiter or Headhunter, but rather to work on weaknesses of HR processes and procedures and improve on HR standards. We are also matching candidates with right jobs but not imposing all the first meeting with Recruiters. In fact, phone or Skype interviews can do the job already. * No offence. It's an open topic discussion here.