Headed into the 2012 season, there was legitimate concern about the depth and quality of Boston's farm system due to their lack of impact prospects—beyond Will Middlebrooks and Xander Bogaerts, that is.
Therefore, it was an unexpected and pleasant surprise that a majority of their top prospects surpassed expectations throughout the season. As a result, their individual and collective performances have propelled the system towards a top-15 overall system ranking entering 2013.
Having said that, it's important to remember that most of their position prospects are still at least a year away from reaching the major leagues, though some may crack the lineup by the end of the 2013 season. With the exception of Allen Webster, most of their high-ceiling pitching prospects are several years away and shouldn’t be expected to contribute until the 2014 season at the earliest.