My main thought is to be able to look at stats to best determine the effectiveness of DBs in the passing game. Right now, all we have is INT. Now, maybe, the a guy with 1 INT isn't very good, or maybe he is so good he never has passes thrown his way, or maybe he is knocking down 50% of the passes thrown his way... I just don't know. I can't get much from watching the games, either.
Is there a way you can do something in this vein?