Found this article from a few years ago concerning a scout's take on finding the next great quarterback.  "This is the quarterback problem. There are certain jobs where almost nothing you can learn about candidates before they start predicts how they’ll do once they’re hired. So how do we know whom to choose in cases like that?" - Malcolm Gladwell

Since the Cowboys are on spring break per DC.com, here is an interesting in depth story about the draft:

http://www.newyorker.com/reporting/2008/12/15/081215fa_fact_gladwell