Any job worth having is handed out to friends of the C-suite. Rare internal hires are poached, not posted for anyone to apply. HR makes big promises but does just about nothing other than recruit & fire (oh, and change their name to "People Ops".) The common thinking seems to be that if you're not from Silicon Valley you must be an idiot. Executives are too busy having offsite meetings to actually recognize that they're not making the changes they think they are.