It wasn’t that long ago that the Bears were known as a stifling defense, playing the famed Tampa-2 scheme under Lovie Smith and current Cowboys defensive coordinator Rod Marinelli. However, over the last two years there has been a drastic shift in the Bears defensive philosophy as head coach John Fox brought in Vic Fangio to coordinate his defense in 2015. Fangio was Jim Harbaugh’s coordinator with the 49ers from 2011-14 and runs a 3-4 scheme, and needless to say there has been a significant overhaul in personnel with the Bears having replaced almost every single starter since the end of 2014.