We are near the end of one of the more unpredictable seasons in the NFL in recent memory as we find ourselves in the midst of the postseason. In the playoffs Anthony Nelson Jersey , much like every other year, we see the 12 best teams in the league duke it out for a shot at the Lombardi Trophy in February. While those 12 have their eyes set on the championship, there remains 20 teams left on the outskirts of the playoffs, left to reflect and attempt to figure out what went wrong in this season, what could have changed, what they could have done differently, and what they can change moving forward to get a spot in the one of the most prestigious tournaments in all of American sports in the future. In football, being the ultimate Jeffery Simmons Jersey , complex, team sport that it is makes it a little difficult to narrow down what the biggest issue for each team is and what they ought to do about it. That is where I - your mere spectator with an opinion - come in. This piece focuses on the teams that failed to make the postseason this year and gives them (and by association their fans) an idea of what they should go after in the coming offseason to best upgrade their roster, improve the on field performance of the players on board, and bring them all one step closer to tasting ultimate football glory in the nearby future. This is what all the 20 non-playoff NFL teams need to improve on in 2018. Football is probably the hardest sport to make a team out of. Unlike basketball where the five players on the court play offense and defense, in the NFL they have 11 players on the field for offense and then a different set of 11 players on the field for defense. Not only that, but they also can have up to 53 players on a roster at one time for susbstituions and sudden injuries.It is also difficult to make an NFL roster because of all the positions. On offense you have linemen, quarterbacks, running backs Nate Davis Jersey , receivers, tight ends, and fullbacks. On defense you have linemen, defensive backs, cornerbacks, and safeties. Then there is special teams that include kickers, punters, and return men. In addition to all of these positions teams have to hire coaching staffs as well.When going into an offseason Tytus Howard Jersey , teams have many decisions to make. They first must make the obvious changes that they need work on from the previous season. If a team's quarterback got sacked over 40 times in the previous season, then they would need a offensive linemen to fix that problem. If a team allowed over 400 goal yards a game, they need to make some changes on defense.Whether it's through the NFL Draft, trades or free agency pickups, NFL teams must determine what players best fit their system in order to be successful for a playoff run and eventually become Super Bowl contenders. Some teams have made the right choices, like the Seattle Seahawks who changed their defense around through the draft in a couple years and some teams just can not get right like the Cleveland Browns who have not made the playoffs since 2002.Here are the players we believe to be the worst in their franchise's history.