<p>Clearly your son has qualities companies liked, based on the fact that he got several call-backs and was even sent to HQ. I think he has difficulty with his interview skills. I’m guessing he isn’t aware of how important it is to “be likable” and that his academic skills are only one portion of what makes a good candidate (even though they helped to get him to interview). The interview process is terribly hard, it goes on and on and on and… The competition is fierce, and everyone seems “so nice” (on the surface). It’s very complicated and confusing to kids who are used to doing well in school, getting good grades, and knowing “how they stand”.</p>
<p>My kids watch the TV show, The Office, and from that I think they’re getting some sense of it’s like to be in a small office. (Everyone wants to be John Krasinski) Of course a TV show is far from reality, but he might enjoy how the characters learn to get along.</p>
<p>Good luck!</p>