Franchise stars aren’t difficult to identify. All NFL defenses– together with their fanbases– know that when they’re taking on guys like Lamar Jackson, Patrick Mahomes or Derrick Henry, there’s one gamer who needs to be consisted of at all expenses. But doing so is much easier in theory.

Obviously, stopping a squad’s most significant star does not guarantee triumph– as NBA teams that faced Michael Jordan’s Chicago Bulls in the 1990s can inform you.

It can be challenging to figure out which players will fill crucial functions. New additions, breakout gamers, guys returning from injury– they can all affect their teams in a surprising way.

Simply take a look at running back Raheem Mostert, a relative unidentified heading into 2019. He ended up being one of the San Francisco 49ers’ greatest X-factors during their run to Super Bowl LIV. Running back Damien Williams played a similar function for the Super Bowl champion Kansas City Chiefs.

Here, we’ll analyze each team’s most significant prospective X-factor for 2020.