Nowadays, with free agency and the huge payrolls some teams have, many are able to create contenders by spending their money on the top players on the market. What small-market teams have to do, however, is find the best prospects and work them through the farm system.
Many great prospects have come through each team's farm system, including many legends of the game. The best prospect from each team is included in the slideshow.
For a player to merit inclusion, he needs to have played at least two seasons in a team's minor league system. As a result, bonus babies or one-season wonders will not be included. Also, the minor leagues were not unified early on in the game's history, so do not expect any deadball era players.