Miami is not in a position to make the playoffs and as a result might not be in a hurry to make any immediate call ups. Rosters expand on September 1 but the Marlins did not make any roster moves before game two against the Braves in Atlanta.
Although the Marlins have not been notably active with regard to adding players to the roster in the past, the organization might benefit from having additional depth. Several Marlins starters, including Jose Fernandez, David Phelps, Jose Urena, and Henderson Alvarez are all on the disabled list and as a result Miami has turned to its younger arms.
While Kendry Flores and Justin Nicolino-type prospects have received an opportunity as a result of the numerous injuries, the Marlins will likely monitor the number of innings each tosses before the end of the season. The Marlins might be forced to add starting depth if the club is not confident in the veterans within its minor league system.
Giancarlo Stanton is expected to return to the lineup at the end of the week and since it is now September, a corresponding roster move will not be necessary. Manager Dan Jennings previously said Tomas Telis, who was optioned to Triple-A New Orleans in mid-August, would be called upon when rosters could expand and he could become the first to be promoted in the coming days.
Miami might not be in a hurry to add depth because of its current roster situation. As the club has been plagued by injuries, active players on the 25-man roster have simply been placed on the disabled list while corresponding roster moves were made. As a result, the Marlins only have a handful of healthy players not with the major league team on the 25-man roster. In order to create space on the 40-man roster, a player would have to be designated for assignment. The Marlins, given their current lack of depth, might not be in a position designate any player on the roster.
The Marlins will likely add a few players to the roster before the end of the season. But right now, the club has decided not to make a move.