If you have (at minimum) over 9,000 HR positions within your company, you've failed. I don't even think that HR is the most useless of jobs, there is a need for someone to handle internal affairs, hiring and general personnel elements (albeit a lot of that can be subsumed between/under other positions), but even for Amazon 9,000 HR roles at the minimum based on this number is beyond insane unless HR is specifically being over-applied to a variety of roles.