We're down to the final four teams left kicking and screaming.
With the rest of the league mired in a long winter's dirt nap, who still matters? Who still has the might to alter the course of this campaign?
Here's my list of the 51 most important people left in this NFL season:
49) Keanu Neal, Falcons safety: Atlanta's defense doesn't get (or deserve) much love, but it's much better with this hard-hitting rookie on the field. The Falcons allow a 61.6 QBR and 4.2 yards per carry with Neal in the lineup. Without him, those figures stretch to a 74.4 QBR and 5.0 yards per tote.
48) Carl Cheffers, NFL official: "Who in God's name is Carl Cheffers?" you ask. BREAKING NEWS: He's the man reportedly assigned to referee Super Bowl LI, marking his first appearance in the big game. Everyone is happy for Cheffers, save for Chiefs fans, who know him as the fellow who flagged tackle Eric Fisher for a game-crushing holding call against the Steelers.
47) Facebook Live: Every Championship Week needs an accessible/juicy controversy. Antonio Brownprovided as muchby live-taping his coach and quarterback talking like a pair of riled-up sailors in Pittsburgh's locker room. It's a scenario ripe for overly serious hot takes, but nobody will care what Brown zapped out to 1 million-plus viewers if he fries the Patriotson Sunday.
45) Ernie Adams, Patriots secret weapon: Operating in the deep shadows, New England's special-projects maven serves as Bill Belichick's right-hand man and a mysterious season-to-season X-factor. He was also in Dallas the day Kennedy was shot and spent 14 untraceable years in Cuba, Nicaragua and the outer provinces of Beirut.
44) Joe Buck, Troy Aikman and Erin Andrews, FOX broadcast crew: No announcing cadre has a bigger assignment in 2017. Handling Super Bowl LI, Buck and Aikman will appear in millions of households worldwide. Something tells me they're up to the task.
43) Todd Haley, Steelers offensive coordinator: With his revenge tilt against his former employer in Kansas City out of the way, Haley is busy preparing the most important game plan he'll author all season. Another workhorse day for Le'Veon Bell -- or does Haley unleash Big Ben in the biggest spot possible?
42) Dante Scarnecchia, Patriots offensive line coach: As we mentioned in the Patriots-Texans preview, Scarnecchia could "morph Kate Winslet, Adele, Scarlett Johansson and the Obama daughters into a functioning front five." With 350-pound behemoths at his disposal instead, Belichick's longtime aide knows what Sunday boils down to: protecting Tommy at all costs.
41) Dont'a Hightower, Patriots linebacker: The Patriots haven't exactly missed the dispatched Jamie Collins, but Hightower -- a second-team All-Pro -- finished with the third-highest pass-rushing grade among players at his position, per Pro Football Focus. He leads a stout Patriots run defense tasked with maintaining gap integrity against Le'Veon Bellon Sunday -- something no team has mastered since before Thanksgiving.
39) Taylor Gabriel, Falcons wideout: He's not a guy you feed play after play. If you're Matt Ryan, you wait for the perfect moment to unfurl a golden deep streak to the lightning-quick Gabriel. When it works -- and that's often -- it usually doubles as a knife to the heart of Atlanta's doomed opponent.
38) Devin McCourty, Patriots safety: A quintessential Belichick player, McCourty goes about his business without much fanfare. Bringing unmatched consistency to the safety position after years at cornerback, the 29-year-old McCourty also understands how to answer questions the way his grumpy coach would. Asked this week what a loss to Pittsburgh would mean, McCourty told scribes: "If we don't win the game, the season's over." He's not wrong.
37) Davante Adams, Packers wideout: With Jordy Nelsonunlikely to play -- and certainly not at full power -- it goes without saying that Adams must eliminate the late-season drops, shake off last week's ankle tweak (easier said than done) and produce one of the better performances of his career against the high-flying Falcons.
35) Ty Montgomery, Packers receiver-turned-running back: His transition to the backfield should be viewed as a success. When Montgomery is touched within 1 yard of the line of scrimmage, he averages 4.5 yards per carry, tops among all runners, per PFF. With Green Bay able to spread him out in motion all over the field, Montgomery has emerged as a versatile ingredient in the Green Bay offense.
34) LaDarius Gunter, Packers cornerbackExpected to shadowJulio Jones for much of Sunday, Gunter must shake off last week's horrible outing against Dez Bryant of the Cowboys. Having given up either multiple touchdowns or 100-plus receiving yards (or both) in four games this season, Gunter is far from shutdown material.
30) Lady Gaga, Super Bowl halftime diva: She absolutely crushed the national anthem in Super Bowl 50, but some remain suspicious about Gaga's ability to pull off this year's halftime show. I'll save the definitive pop-culture analysis for someone else, but me? I dig her. She's floating around dive bars, belting out tunes and basically not giving an F what anyone thinks. I like the cut of her jib.
27) Josh McDaniels, Patriots offensive coordinator: Nobody in the league does a better job of preparing game plans and seamlessly shapeshifting New England's attack from week to week. He'll be a head coach again before long -- and he'll be a good one.
26) Micah Hyde, Packers safety: He made the play of the week on defense against the Cowboys, jumping the route to pick off a Dak Prescott screen pass. Far from luck, it was a quick decision that came from deep film study of the Dallas offense. Turnovers WILL determine Sunday's Packers-Falcons showdown, turning Hyde into an obvious X-factor.
24) Alex Mack, Falcons center: Atlanta's offensive line was a disaster for years. In came Mack -- arguably the league's top free-agent signing last offseason -- to solidify the unit and help propel Matt Ryan to a likely MVP award. After so many years of toiling for the Browns, Mack finished the regular season as the league's third-best center, per PFF, while bolstering his reputation for being one of the toughest players around.
21) Julian Edelman, Patriots wideout:Antonio Brown gets all the attention, but the Steelers star is actually second in the NFL in receiving yards per game (92.4) to Edelman (98.3) since Week 9. Coming off a monster eight-catch, 137-yard outing against the Texans, Edelman has served as Tom Brady's unrivaled security blanket since that point.
20) Keith Butler, Steelers defensive coordinator: One of the league's most underrated coordinators, Butler has turned Pittsburgh's defense into a roaming terror. Taking over for the legendary Dick LeBeau was no small order, but Butler has won over Steelers fans everywhere with his handiwork in 2016.
18) Dan Quinn, Falcons coach: Quinn is 1-0 with the Falcons against Aaron Rodgers and the Packers after going 3-0 against Green Bay as defensive coordinator of the Seahawks. If he pulls off another win, Quinn will become the first coach to reach the Super Bowl in his second season since Jim Harbaugh in 2012.
14) Kyle Shanahan, Falcons offensive coordinator: Just like that, he's likely coaching his last game in Atlanta (and maybe his last with the Falcons). Expected to take the Niners' head-coaching job, Shanahan will depart after spinning pure magic this season. That won't be so easy to replicate with whomever San Francisco sticks under center.
9) Mike McCarthy, Packers coach: For a team that churns out winning seasons without interruption, it sure feels like McCarthy's been put through the ringer this season. Just once, I'd love to see him rip off his giant green coat and dance around the field like a giddy schoolgirl. Too much to ask with a win on Sunday?
7) Ben Roethlisberger, Steelers quarterback: With another Super Bowl win, Big Ben would join an elite group of signal-callers -- Joe Montana, Terry Bradshaw, Tom Brady and Troy Aikman -- to win three-plus world titles. If he stumbles, it's fair to wonder if and when the 34-year-old passer will make it back to the brink of another Super Bowl.
6) Mike Tomlin, Steelers coach: If he can squeeze two more victories out of this team, Tomlin has a chance to move into the exclusive club of coaches with two or more Super Bowl wins. I dig his style: He runs old-school, aggressive training camps, dials up two-point conversions left and right and has been known to drop into Pittsburgh-area dive bars and buy a round of drinks for the entire place. A man of the people!