| Player | Pos. | Age | 2010 Team(s) | 2009 Invite | Notes |
| Gregory Baez | LHSP | 18 | GCL | Y | Jumped from the DSL to GCL with limited success |
| Aaron Barrett | RHRP | 22 | VMT | N | 9th-rd pick in ’10 draft, hammered for 23H, 23R in last six appearances |
| A.J. Cole | RHSP | 18 | VMT | N | 4th-rd HS pick in ’10 draft, late sign; pitched a scoreless inning in his one appearance |
| Paul Demny | RHSP | 21 | HAG | Y | Faded in Aug/Sep (0-7, 6.75) — a power arm that’s likely headed to the bullpen in 2011 |
| Pedro Encarnacion | RHSP | 19 | GCL | Y | Jumped from the DSL to GCL with limited success |
| Wirkin Estevez | RHSP | 18 | DSL | N | Sleight (6-1, 170) righty that put up strong numbers in DSL all year long |
| Matt Grace | RHSP | 21 | GCL, VMT | N | 8th-rd ’10 Col Jr. pick that struggled early before having some limited success at GCL |
| Tyler Hanks | RHRP | 20 | GCL | N | 17th-rd ’10 JuCo pick that put up respectable numbers (1.29WHIP, 25K in 33⅓IP) |
| Bobby Hansen | LHSP | 20 | VMT | Y | Big (6-5, 220) lefty, HS pick in ’08; hittable (72H in 56⅓ IP) but gets Ks (8.15K/9IP) |
| Mark Herrera | RHRP | 20 | VMT | N | 16th-rd ’10 JuCo pick w/ good size (6-3, 230) and the numbers s to match (.220 OBA) |
| Graham Hicks | LHSP | 20 | VMT, HAG | Y | Lanky, long-limbed lefty that tends to get hit on his 2nd pass through the opposing lineup |
| Trevor Holder | RHSP | 23 | HAG, POT | N | Pitch-to-contact guy that can be effective in lower third of the strike zone, will be even better as his offspeed stuff develops. |
| Chad Jenkins | LHSP | 22 | VMT | Y | Control is a little lacking (5.67BB/9) but has the strikeouts to match (8.67K/9IP) |
| Taylor Jordan | RHSP | 21 | VMT | Y | Struggled but survived when I saw him in late June but didn’t fare so well in July and August |
| Anthony Marcelino | RHSP | 17 | DSL | N | Venezuelan IFA that put up good numbers in the DSL, never mind he turned 17 in March |
| A.J. Morris | RHRP | 23 | GCL, POT | Y | Converted to relief in mid-season with limited success, but had a noticeable uptick in velocity upon his return from GCL |
| Miguel Navarro | RHRP | 17 | DSL | N | Another IFA, but struggled at GCL — 20IP 19H 19R 21BB |
| Robbie Ray | LHSP | 18 | VMT | N | 12th-rd HS pick in ’10 draft, late sign, pitched a scoreless inning in his one appearance |
| Dan Rosenbaum | LHSP | 22 | HAG, POT | Y | Big-bodied lefty that features a curve and a cutter to go with fastball; command is sometimes spotty but knows how to pitch without his “A” game |
| Josh Smoker | LHRP | 21 | HAG | Y | Conversion to relief was a huge success (1.35ERA, .174OBA) and may have salvaged his prospect status, if not career |
| Sammy Solis | LHSP | 22 | HAG | N | #2 WAS pick in ’10 draft, made two scoreless appearances late in season. Expected to rise quickly a la Storen |
| Rob Wort | RHRP | 21 | HAG, POT | N | Lanky righty (6’2, 170) that leapfrogged Dean Weaver as bullpen star. Pitches better with men on than with bases empty |