Wing backs are attacking, aggressive, and difficult to markA trademark feature of the back-three system is the use of wing backs, a position which occupies a unique place in football tactics. Certain coaches, such as Antonio Conte and Simone Inzaghi, have recognized the inherent value of wing backs and utilize them when possible. Center backs can push into midfieldPlaying a back three doesn't necessarily mean you're adding too much defensive personnel to your XI, however. The pass map above shows the strongest cluster of passes coming from what is effectively a left center midfield -- or even left No. It is perhaps the ultimate example of why playing with three center backs doesn't necessarily mean you're playing defensively.