|With the trade of Milone, Rosenbaum
becomes the most accomplished LH
starter in the Nats minors. A workhorse
(171⅓IP) in ’11, he saw his velo jump
into the low 90s but had to repeat
at Potomac to master his control. Has
the knack to get batters out regardless
of whether he has his “A” game. Throws
a FB, CT, CH and will spot a CV.
|Injuries have dogged Solis in his two
years in the organization, delaying his
ascent that had him in DC in ’12 per BA,
et al. Has a tendency to leave his pitches
up, which even A-ball hitters can punish
and was shown with a pedestrian AFL
showing. Works w/ a FB/CH/CV arsenal,
often changing the speed and arc of the
curve like a fireballer dials up and down
the heat. UPDATE: Solis is the latest Nats
prospect to undergo TJ surgery (3/12),
which will likely sideline him until early
in the 2013 season.
|His fastball hasn’t been clocked above
92 since ’09, when he hit 95 in some
of the HS showcases. Scouts are mixed
as to whether the velo will come back.
Given its natural sink, whether that
matters is another question, especially
with his plus change, an improving
slider, and strong peripherals. Scouts
point to some difficulty with repeating
his delivery, which if/when solved, might
“fix” his velocity.
|Grace led the Suns in wins, IP, and GS
with a 5.17ERA and 1.564WHIP. Given his
experience as a lefty specialist at UCLA,
it would not surprise me if he’s sent to
Potomac and put back in the bullpen.
He is, after all, still lefthanded and he
does throw strikes (2.6BB/9IP).
|When healthy, Purke features a low-to-
mid 90s FB and a plus low-80s SL. Like
Detwiler, he has a history of dropping
his arm slot and throwing across his
body, flattening his stuff. Initially,
he was thought to be a candidate for
working out of the ‘pen but his work
in spring training and assignment to
Potomac are both indicators he’ll be
starting for the P-Nats.
|The #5 Auburn arm makes the list
because he’s young, lefthanded, and
keeps the ball in the yard. Doesn’t throw
hard, but has a deceptive motion coming
from the 3/4 slot. With improved control,
could make for a decent MR or LOOGY.
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|Another one of the ’11 IFAs, Silvestre’s
last seven appearances were as a starter.
He went 2-0 with a 1.75ERA over that
stretch, though he struggled some with
his control (17BB in 36IP). Not invited to
the FIL. Could just as easily repeat DSL
as go to the GCL in 2012.