4. George Fant, OT, NY Jets
George Fant was little more than a fringe starting offensive tackle at this time a year ago. The former Seattle Seahawks offensive lineman was coming off a below-average season as the Jets' starting right tackle and wasn't even a lock to start Week 1.
He did beat out Morgan Moses for the Week 1 right tackle job, only to switch over to left tackle in the middle of the first game after what turned out to be a season-ending knee injury to Mekhi Becton.
Fast-forward a year later and Fant appeared to be locked in as the Jets' left tackle, only for another injury to Becton to necessitate a move back to right tackle for Fant following the signing of Duane Brown.
It remains to be seen how Fant will fare now that he's back at right tackle, but it's impossible to ignore how good he was last year. Fant was legitimately one of the best pass-blocking left tackles in the NFL.
The 30-year-old allowed just 18 total pressures in 15 games, the third-best among all offensive tackles in the NFL behind just Tristan Wirfs and Andrew Whitworth.
Despite this, Fant is mostly an unknown around the league and he's found it hard to shed the fringe starter label he earned early in his career. Another season of excellent play and a well-earned extension would certainly do wonders for his reputation.
For now, however, he remains one of the Jets' best-kept secrets.