The Rays lost some catching depth, but they added some arms to the organization
While much of the attention was on the major league portion of Thursday's Rule 5 Draft, and rightfully so, there was an unusual amount of movement in the two minor league phases.
The minor league phases -- Triple-A and Double-A -- are so inside baseball that you almost need a stronger metaphor. Baseball America offered a little primer on them a couple years ago:
In the Triple-A phase of the Rule 5 draft, teams may select any eligible player left off the major league 40-man roster or the Triple-A reserve roster of 38 players.