Right. Barr has never shown anything as a pass rusher in the NFL. And at this point, he'd just take up a roster spot. Golden, Gardeck, Thomas, Sanders, and Kennard are all pretty much locks to make the roster. Doesn't make any sense to bring in a 30 year old who has never been proven at the NFL. He was a 4-3 backer. Literally just a name that doesn't fit.
And honestly, unless a CB is a ton better than Murphy, Wilson, and Hamilton, it doesn't really make any sense to bring them in. Hamilton and Murphy both played better than Rhodes and King last year. Sure Rhodes is better than Wilson, but Wilson needs to play. King is just a guy really.