Farm systems in MLB are vital to the development of baseball's future stars, and the opportunity to collect as many sound prospects as possible is a primary goal of any team.
Top prospect Matt Moore of the Tampa Bay Rays is a prime example of what a good farm system can do to help a player achieve success. The 22-year-old pitcher excelled in the minors during the 2011 season, and when he was called up last September to the Rays, he didn't disappoint. In just his second MLB start, Moore pitched seven scoreless innings in Game 1 of the ALDS against the Texas Rangers and only allowed two hits in a promising start to his career.
In 2012, Moore is ranked the No. 1 prospect according to mlb.com, but his presence alone doesn't necessarily give the Rays the best farm system in MLB.
Here are all 30 farm systems ranked from top to bottom for the 2012 season. Keep in mind that some of these players could hit the field as early as next season.