"... Apparently these recruiters just call random numbers and hope to be directed to some hiring manager. ..." Poor phone screening technique. All calls shou

"... Apparently these recruiters just call random numbers and hope to be directed to some hiring manager. ..." Poor phone screening technique. All calls should be routed through one person where they can shield internal people from "unknown" callers. This simple hack works surprisingly well in large companies and is a 101 social engineering technique. Kevin Mitnick now makes a living writing books on this subject ~ http://www.amazon.com/Art-Deception-Controlling-Element-Security/dp/0471237124 http://www.amazon.com/Art-Deception-Controlling-Element-Secu...