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As we put a final bow on the 2014 Major League Baseball draft, it is a great time to look at the state of the farm systems. All 30 teams have exhausted weeks and months building toward this weekend and are now prepared to reap the rewards.

The closing of the draft allows us to do an examination of the job MLB clubs have done developing the talent already in the pipeline and gives us a look at how the new draftees impact the farm system rankings.

Even though the season is just two months old, that is enough time to look at which players have taken necessary steps forward or just grown into their bodies, showing the tools that have been waiting to come out.

Rankings are based on two criteria: impact potential and depth. A team may have more of one than the other, but it is necessary to have more than a couple players who project as quality big leaguers to have a good farm system.

Signability was taken into consideration. For instance, if there is a consensus top-100 draft talent who didn't get selected until Day 3—where there's no chance teams can pay the money he wants—there's no reason to include him on this list.

Also, while there are young players in MLB who still retain prospect eligibility, if they are on the active big league roster as of June 7, they are not considered on their team's ranking. For example, Jonathan Singleton's recent call-up by the Houston Astros means he doesn't factor into their farm system.

With all the caveats and explanations out of the way, here is an updated ranking of all 30 farm systems. Preseason rankings are based on Bleacher Report Lead Prospect Writer Mike Rosenbaum's list.