When it comes to professional athletes Kaleb McGary Jersey , NFL scouts, coaches, and owners already have an idea of what makes up the perfect athlete, at every position. For example, the prototypical NFL quarterback size is 6'2", 215 lbs, with a 31" arm length and 9" hand span. They also know that a wide receiver should be 5'11" Kendall Sheffield Jersey , 185 lbs and a running back should be around 5'10", 215 lbs. Those are by no means the only thing that is measured, a long list of other variables combined with those sizes helps NFL front office personnel make decisions on the futures of incoming rookies.The only thing they will never be able to measure is how these players will be able to handle the pressure of playing in the NFL. Can they lead an Offense to the Super Bowl? Will they be able to run the defense and turn them into one of the league's best? Do they have the X-factor?The X-factor is the one measurable that every NFL scout, coach, and owner would love to have but is impossible to calculate. It is that special quality that is essential for success. It is a combination of things like a player's passion, drive, talent John Cominsky Jersey , and that special quality that is tough to explain but easy to notice once you see the player in action. It's the "It" factor of sports.As the 2016 NFL season winds down, we decided to put together a list of the X-Factor from every NFL team for this season. The midway point of the NFL season has come and gone, which means fantasy football players are knocking on the door to the playoffs. Time flies when you’re having fun (unless you’re sitting at 2-8 and preparing for your 2015 draft). But for those of you jockeying for playoff position, the time to start thinking about your playoff roster is now. Looking ahead to the match-ups in weeks 14, 15 and 16 can go a long way in helping you make your personnel decisions. It’s never too late for a savvy pickup or a timely trade before your deadline so here are 15 players you should target in order to put your team a cut above the rest and get the boost your roster needs to win it all.Not included in this list are the obvious choices like Peyton Manning, Tom Brady, DeMarco Murray Qadree Ollison Jersey , Antonio Brown, Jimmy Graham, etc... This list is geared towards players under the radar that you may not have previously considered for your team to support your superstars and round out your roster. If you happen to own one or more of these players already, then sit back and relax as this could be the year your team makes a championship run. Because timing is everything in fantasy football, acquiring one or more of these players before everyone else is what championship owners will look back on as a key to their success.