In 2011, the Arizona Diamondbacks won their first division title since 2007. In December they traded for starting pitcher Trevor Cahill to help bolster their young rotation.
The Giants had the second best ERA in the National League but also scored the fewest runs. They're getting Buster Posey back from injury, and are hoping he can help the team score enough runs to get them back into the playoffs.
The Dodgers managed to only win 82 games despite having the Cy Young award winner, Clayton Kershaw, and Matt Kemp, the MVP runner-up.
The Rockies were tied for second in the NL in runs scored but only won 73 games last year. Troy Tulowitzki and Carlos Gonzalez will help make this offense potent again in 2012, but their pitching will be a big question mark.
The Padres were the NL's second worst offense in 2011, something they're obviously trying to improve on in 2012. They traded for Carlos Quentin and Yonder Alonso in the offseason.
There is a lot of young talent in this division. Let's look at some of the sleepers and prospects from the NL West from a fantasy perspective.