Yes, Mack is the cherry on top of the cake shake. And despite all the feels that come with getting a player of Mack's caliber, don't overlook why Bears fans love getting him. He was the 2016 NFL Defensive Player of the Year, a two-time first-team All-Pro and three-time Pro Bowler. He brings a much-needed pass-rushing presence to the Bears, probably the missing link in Vic Fangio's defense. The Bears ranked 10th in total defense last year. And they were good. (Did you see them hold Jimmy Garoppolo's 49ers to just five field goals in Week 13?) But beyond the stats and accomplishments, keep in mind that this is Chicago. The city is defined by good defense as much as deep dish pizza, hot dogs and wind. It's the city of broad shoulders, and those shoulders have harangued quarterbacks for generations. This Bears team was fine before the Mack trade. But it wasn't Chicago good.