The San Francisco 49ers enjoyed so much success in 2011 that is difficult to find many weak links.
After all, the 49ers were able to reach the NFC Championship Game primarily because of how many players chipped in career years.
However, that isn't to say that a few players didn't disappoint in 2011. Some, like Braylon Edwards and Adam Snyder, are no longer on the team.
Those who are on the team are looking to bounce back in 2012.
Here are five players who need to step up for the Niners.