LHP Brian Flynn
If Slowey isn't in the organization come Opening Day, Flynn will probably be the first pitcher to be called up if anything happens to Hand or the starting rotation.
Flynn had a great season last year in the minors, as he went 7-12 with a 2.63 ERA, which earned him a September call-up. However, Flynn struggled when he joined the Marlins, going 0-2 with a 8.50 ERA in 18 innings over four starts. According to Frisaro, the club believes Flynn became fatigued in September, which is not uncommon for players who had never previously reached the big leagues, which was the case with Flynn.
This spring, Flynn struggled out of the bullpen, allowing six earned runs in seven innings. But in his only start, which came against the World Series champion Boston Red Sox, Flynn gave up just one measly hit in three shutout innings.
Unfortunately, with Koehler, Hand and Slowey pitching lights out, there was no room for Flynn. As a result, Flynn was optioned to Triple-A New Orleans on March 17.
LHP Andrew Heaney
But if Flynn is not the first pitcher called up, then the money has to be on Heaney.
Heaney is rated as MLB.com's top left-handed pitching prospect and is ranked 29th overall on MLB.com's Top 100 Prospects list. According to MLB.com's Bernie Pleskoff, Heaney's fastball sits between 90 and 93 mph, his curveball changes a hitter's eye level because of the pitch's sharp movement and Heaney throws a sinking changeup that is a third quality pitch. Moreover, Heaney isn't afraid to use his entire repertoire at any time, which gives him the ability to set up hitters for swings-and-misses and, ultimately, strikeouts.
Last season, Heaney went 9-3 with a 1.60 ERA and had 89 strikeouts in 95.3 innings between Advanced Single-A Jupiter and Double-A Jacksonville. This spring, Heaney was solid, as he gave up two earned runs on five hits in 7.6 innings over three outings before being sent back to the minors.
"In Heaney's case, he probably sees how close he truly really is," general manager Dan Jennings told MLB.com. "He needs refinement on a couple of things, like a little better pickoff move and holding runners."
If there's one concern with Heaney, it's the lack of a workload from last season. As Baseball America's Matt Eddy states, the Marlins might want to hold Heaney to a 150-inning limit this season.
CF Jake Marisnick
Technically, Marisnick is still a prospect, as he logged 109 major league at-bats last season, 21 short of the 130 needed to be considered a rookie. Then again, Marisnick's cup of coffee in the majors was a forgettable one—he had a .183/.231/.248 slash line in 40 games.
But after a fabulous spring in which he had a .442/.489/.605 slash line, Marisnick might not be a prospect for long...or he might still be a prospect come next spring. If the Marlins decide to stick with Ozuna as the center fielder or go into a platoon with Johnson and Bogusevic in left field, then Marisnick will go back to the minors.
However, if Marisnick wins the center field job, he might be here to stay, which might be a testament to how great of a spring Marisnick had. Redmond certainly thinks so, telling MLB.com:
He's had a great spring, too. It's been fun to able to watch him. He's in the middle of those tough decisions. He's definitely made a case for himself. Those are ones where we have to decide: Does he need more at-bats in the Minor Leagues or is he ready to play in the big leagues?
Defensively, Marisnick is major league-ready. As Frisaro noted, he is the best center fielder in the organization. According to MLB.com, the scouting report is that Marisnick can be overaggressive at the plate and doesn't have great pitch recognition. However, he has above-average power and the speed to be a potential 20-20 player.
If Marisnick begins the year with the big league club, he'll be considered a front-runner for the National League Rookie of the Year Award. But if Marisnick begins the year in the minors, the best-case scenario for him is he'll perform better than Ozuna, prompting the Marlins to choose him over Ozuna when it's time to call one of them up this summer.
3B Colin Moran
The sixth overall pick in the 2013 draft is Miami's third baseman of the future. But that future probably won't begin until the 2015 season, as McGehee is keeping the seat warm for Moran.
After signing for $3,516,500, the second-highest bonus for a draft pick in franchise history, Moran went to Single-A Greensboro and posted a solid .299/.354/.442 slash line with four home runs and 23 RBI in 42 games. Based on his potential, MLB.com has Moran rated as the No. 51 prospect in the majors and fifth among all third basemen. He isn't far off in ESPN.com's rankings, as Keith Law rated Moran (subscription required) 55th overall and cited Moran as the Marlins' second-best prospect (subscription required) behind Heaney. Baseball America agrees with Law and also has Moran as the organization's second-best prospect.
During his short time with the Marlins this spring, Moran failed to get a hit in six Grapefruit League at-bats, but he drew three walks and scored each time. On the bright side, Moran got to work with his future big league coaches, something GM Dan Jennings feels is a positive, per MLB.com:
In Moran's case, he had a chance to face some pretty good pitchers and see how his swing works. The biggest thing for him was he got to spend quality, one-on-one time with Perry Hill. Certainly, his bat is ahead of his defense. In just a short time, he saw what Perry meant to him and how much it helped him.
Moran will start the season at Advanced Single-A Jupiter. In all likelihood, Moran will be a September call-up.