SAN FRANCISCO 49ERS
Chance to win: 15.2% (third)
The reason they win: The road and the offense
For most, the reason the 49ers might win it all is the defense, but that is neglecting the simple fact that defensive performance is far less predictable than offensive performance. The San Francisco offense is no joke. It starts with George Kittle, who is the best tight end in the NFL and might just be the hardest player to tackle in the entire league — he leads his position in yards after the catch per reception and broken tackles. The addition of true number one receiver Emmanuel Sanders took Jimmy Garoppolo and the 49ers' offense into the upper echelon of passing offenses. Since trading for Sanders, the 49ers rank fifth in expected points added (EPA) per pass play — which measures how much the average pass play improves the offense's chance of scoring — and fourth in yards per pass play. Kyle Shanahan uses the play-action fake at the fifth-highest rate and still has his team averaging 9.1 yards per play-action pass, which ranks third. Garoppolo doesn't need to be a superhero for this offense to score 30, he simply needs to continue the play that earned him the seventh-best raw PFF grade per dropback since Week 11.
While a good offense will travel, the 49ers' win in Seattle last Sunday night more than tripled their chances to make the Super Bowl, as it ensured home-field advantage. They will either face the Seahawks or Eagles at home in the Divisional Round while the Packers are likely to battle the Saints, who own the best PFF ELO power ranking in the NFC. Whoever comes out of the Packers-Saints battle will have to travel across the country as an underdog. The road to Miami could not be set up better for the 49ers.
What holds them back: Trusting the defense too much
What's wrong with trusting your defense? Let's go back to the Falcons game, where the 49ers decided to trust their defense and kick a long field goal on 4th-and-1 at the 25-yard line instead of having faith in the offense to gain a yard and end the game. Shanahan was uber-conservative on fourth-and-short last season, but this season he didn't hesitate to go for it against the Ravens and the Saints, almost winning the game in Baltimore and securing the win in New Orleans. The 49ers are likely to be favorites playing at home all the way through the NFC side, but Shanahan will need to make decisions like he did as an underdog on the road — otherwise, the 49ers could end up with a bad beat.
Non-QB X-factor: Deebo Samuel
Samuel was thought of as a gadget receiver who played the position more like a running back. This isn't entirely incorrect. Deebo is running over and away from defenders — his 8.6 yards after the catch per reception is second among wide receivers this season and the second-best mark among rookie receivers since 2006 (A.J. Brown is averaging an absurd 9.4 this season). Samuel has developed into a legit wide receiver, making cornerbacks look absolutely silly and providing the 49ers' offense with one of the best third-options in the playoffs. If Deebo continues to play at the level we saw Sunday night, the 49ers will be one hell of an out.
https://www.pff.com/news/nfl-playoff-preview-each-teams-chances-reasons-they-could-win-it-all