Last year the San Francisco 49ers were one of the worst teams in the league, and going into the season nobody in their right mind thought that the 49ers would be one of the best teams in the league, let alone the best team in the AFC. 

One of the reasons why the 49ers are playing completely different than they were last year, is because of Jimmy Garoppolo. Last year Garoppolo suffered a torn ACL mid way through the season, that caused him to miss the remainder of the games. With Garoppolo back at quarterback, there offense has been outstanding. So far this year the 49ers have been averaging the third most points per game in the NFL with over 29. They also have been averaging the sixth most yards per game in the league with over 387. There offense have also been great due to the fact that they are the second best rushing team in the league. Mostly due to the two headed monster in the backfield in Tevin Coleman and Matt Breida. With them two in the backfield the 49ers have been averaging over 181 yards per game.

Yet the biggest reason for this huge improvement is by far their defense. During the offseason they drafted Defensive end Nick Bosa from Ohio State University, who has became one of the best players among the whole 49ers team. So far this year Bosa is tied for fourth in the entire NFL in sacks per game, and tied for second in the league for tackles for a loss. Yet not only is Bosa having success, but the entire defense has been insane. So far this season they are tied for the second most interceptions in the NFL with 10. They also only allow the opposing team 244 yards per game, which is the best in the entire league.

With the massive improvements the 49ers have made this year they are still undefeated with a record of 7-0. If they are able to keep it up, they may be able to bring the Lombardi Trophy back to San Francisco.