X-Factor: “A variable in a given situation that could have the most significant impact on the outcome.”
If you look throughout the world of sporting news, you will see many different instances of X-Factors for the Pittsburgh Steelers. With the defense in the transitional period that it is in, answers will be sought after high and low. Often times in the most unusual of places.
You will see claims that it is Jarvis Jones with his so far inconsistent career in the NFL, and if he has the ability to lead a linebacking corps into the future.