It's unfair to pin a team's upcoming season on a single player, especially one who's not a quarterback. But there's a group of players, even some non-quarterbacks, whose performance could directly or indirectly impact the win-loss record.
Think of it this way: Team X needs a jolt in protection, while Team Y needs to avoid breakdowns in the secondary. If Team X gets an All-America-type season from its left tackle, but Team Y's supposedly reliable cornerback repeatedly gets beaten for touchdowns, the record likely will be impacted.
Here's a look at 12 players who could make or break the 2017 season for their teams and, in some cases, their embattled coaches.