At 4-1, the San Francisco 49ers will not be sneaking up on teams any longer. After a magical 2011 season, the 49ers have all but lived to expectations in 2012.
With the exception of their minor hiccup against the Minnesota Vikings in Week 3, the 49ers have looked unbeatable, especially in the last two games.
The 49ers have outscored opponents 79-3 in their last two games.
The dominance isn't just extended to the defense.
Offensively speaking, the 49ers are ranked first in yards per game and sixth in total offense.
This is the same team that couldn't move an inch in their 2011 playoff loss to the eventual champions the New York Giants.
However, this is a much different team.With new faces at key spots, the 49ers have turned into the most balanced team in the league.
And it doesn't just stop with the additions of Mario Manningham and Randy Moss.
Unlike most teams, the 49ers have made improvements within.
Here are five players who have improved the most in 2012.