On Monday, New Orleans Saints General Manager Mickey Loomis announced that the team had signed veteran cornerback Aaron Glenn. Glenn, an unrestricted free agent from the Jacksonville Jaguars, was a top-five cornerback last year, putting up solid numbers. Saints fans were mystified by the signing, as they are widely confused as to just what a cornerback is supposed to do. Having been a Saints’ fan my whole life, I know that former Saints cornerbacks have been known to stand in the backfield, bewildered by the large men running past them, but beyond that, the term “defensive back” doesn’t mean much to me. I have been told that these players are supposed to deflect passes and even try to catch some themselves, before attempting to run the other way. This is a very foreign concept in the Big Easy, so it might take some getting used to. Someone will have to tell Jason David what this “cornerback” position is all about, otherwise he might continue to look like a total buffoon.