On Friday, the Red Sox had some work to do with their roster as it was the deadline for teams across the league to protect eligible minor leaguers from the Rule 5 Draft by adding them to the 40-man roster. Although they waited until the literal last second, they got it done and ultimately added seven players while taking three off, pushing their 40-man to an even 40. You can read about the specific moves here.
We briefly touch on the players themselves in that linked post, but since these prospects — some of whom are among the best in the organization — are now officially on the 40-man roster, they probably deserve a deeper look.