NFL free agency has changed through the years. Some form of it has been around since 1947, but the first player to change teams didn't happen until 1962. Unrestricted free agency as we know it today started before the 1993 season, but there were still a few players that changed teams sporadically between those years.
Today's question in our Chicago Bears 30 Day Challenge can be taken one of two ways...
Day 19: Who is the Free Agent that got away?
You can either take it as; Which player did it seem like the Bears were close to signing, only to see him never come to Chicago?