Non-contending major league teams usually watch service time carefully, and rightfully so. If a team has no realistic chance of making the playoffs, there's no point in calling up a prospect if it's going to make him eligible for free agency and arbitration a year early. There's also no reason to rush them.
Yet the Miami Marlins decided to put Jose Fernandez on their Opening Day roster, which is going to make him expensive a year before he had to be. Now they're at it again, calling up Marcell Ozuna earlier this week.
When Giancarlo Stanton went on the disabled list with a strained hamstring on Tuesday, the Marlins lost by far the biggest threat in a lineup that ranks last in the major leagues in runs per game (2.79) and homers (13). To replace Stanton in right field, they summoned Ozuna.