15. Saquon Barkley, RB, NY Giants
After just one year in the league, Barkley is already one of the best. He had high expectations to live up to after being the second overall pick in the draft and being selected ahead of some notable quarterbacks. But Barkley surely met those expectations despite playing on a losing team with a suspect offensively line. Between his touches as a runner and receiver, Barkley amassed over 2,000 all-purpose yards and 15 touchdowns, earning Offensive Rookie of the Year honors.
The most amazing part is that Barkley is only 22 years old. He has a chance to be even better in 2019 than he was in 2018. Obviously, a lot of that will depend on the team around him. But few will be surprised to see Barkley meet or exceed the numbers he put up last season.