Forget about former Cowboys safety Roy Williams coming to the Bears.
They already have a roster full of safeties who are adept at stuffing the run but don't help much in pass coverage, and Williams is the poster boy for that kind of player.
Kevin Payne, Craig Steltz and Brandon McGowan are all better off playing up near the line of scrimmage in the box and providing strong run support, just like Williams is and Mike Brown was. And, just like Williams, none of them are true center-fielder types who can cover half the field in passing situations and make game-changing plays on the ball, like Brown did in his first four years in the league, until a variety of injuries took their toll.
Danieal Manning would seem to be the prototypical free safety because of his exceptional speed and athleticism, but he has struggled there in the past because his instincts and football smarts don't match his physical gifts.
Williams was a five-time Pro Bowl player and is still only 28, but at least a couple of those trips to Hawaii were based strictly on reputation and a few highlight-reel kill shots. He has 19 career interceptions but just 2 in the past two years.
The Bears definitely need a safety, but they need one who can help in pass coverage, considering they were 30th in passing yards allowed last season.