I really enjoy reading the minor league updates and analysis in this forum. It has added more depth to the enjoyment of the game. I had a newbie question about the age of players in the farm system. At what age is player expected to play at the big ballclub before they are considered to have reached their full potential? Or in other words, which players on the current squad would be dropped or demoted if they did not make the team by 2012? I'm sure there is some varience player to player, but is there a rule of thumb?