UofIowa psych dept did some stats: what applicant-questionaire items correlate to 1st annual review. Was it IQ? Education? Professionalism?
No, the #1 correlation (only correlation of significance) was Conscientiousness.
See here: http://bobsutton.typepad.com/my_weblog/2009/10/selecting-tal...
Short term view: Superficial markers of success are most highly valued.
But in the long run: Intellectual power matters most.