The Tampa Bay Rays have been able to upgrade their farm system through trades over the last two seasons. Once rated in the bottom third, they are now more in the middle of the pack. Rating minor league players is an inexact science. The different leagues and parks makes it difficult to gauge performance, although there are some who try to use it as a predictor for major-league performance.
What makes this list different is you will not see names like Richie Shaffer, Mikie Mahtook, and Enny Romero. They may still have their rookie status, but I no longer view them as prospects as they have seen some time at the major-league level. They will eventually stick on the roster or perhaps be traded away.
Despite their mediocre grade, the Rays’ system is talented. Again, they lost players at the top of the Rule 5 Draft with the Philadelphia Phillies selecting Tyler Goeddel and the Baltimore Orioles later selecting Joey Rickard. These were casualties of not having enough room on the 40-man roster due to other prospects reaching their time.