I wrote earlier about SackSEER, the Football Outsiders model that tries to project the NFL success of college pass rushers. It uses four specific factors to do this: short shuttle time, indicative of agility; vertical leap, which can show potential for burst and explosiveness off the line; per-sack college productivity; and college games missed. The models is restricted to 4-3 defensive ends and 3-4 linebackers and gives its results in the form of five-year sack totals.
I cautiously respect SackSEER because 1) it uses sound statistical methods to deduce which tools and conditions can be used to predict success; 2) those tools and conditions have tangible connections to success; 3) it's honest about its shortcomings; and 4) it's reasonably accurate.
SackSEER analysis of this draft's pass-rushing prospects was just released and offers a few against-the-grain opinions on some of the speed-rusher prospects being mocked to the Seahawks.