MLB Kendall Joseph (5'11, 230) from Belton, SC is my choice for X-factor. Wait, what? Kendall Joseph?
Yes, Kendall Joseph is probably ranked well below other key players like Tank or whoever our new kickers shake out to be. The previous articles of Joe Gore, Kevin Dodd, and others make great arguments. I wanted to go the path less traveled because every season I find an unheralded player or two really do make the difference.
An X-factor to me is a guy who isn't a key piece of the puzzle (we all know we need a healthy Deshaun Watson to be successful), but remains vitally important to your overall success.