All major league teams have to set their 40-man rosters by November 18 in order to protect the top eligible minor league players from the 2019 Rule 5 Draft. In recent years, the Rule 5 Draft has not been too much of an issue for the Marlins as their farm system has been bereft of talented prospects. Now, in the middle of a full-scale rebuild, multiple top prospects are at risk, and the organization may encounter a few headaches in sorting out the puzzle of how they can hold onto them.
The following is a short guide for how the Marlins can easily trim their roster down to the magic 40.