[農場] Scouting Yankees Pitching Prospect Brett Marshall

[appshjkli (Red Spider Lily)]

  Scouting Yankees Pitching Prospect Brett Marshall

  http://0rz.tw/d058b

  Monday, September 22, 2008 | By Alex Eisenberg

  This week, I want to discuss a couple pitchers named Brett.

  One is Brett Marshall, drafted by the New York Yankees in the 6th round of

  the 2008 Major League Baseball draft. The other is Brett Hunter, drafted by

  the Oakland Athletics in the 7th round of last June's draft. Today, we break

  down Marshall.


  Brett Marshall | RHP | Drafted - Round 6, 2008 | New York Yankees

  With first round draft pick Gerrit Cole opting for college over the Yankees,

  the best hope of finding a front of the rotation starter out of the 2008

  draft class falls into the hands of Brett Marshall. While his upside may not

  be quite that high, it is certainly considerable. However, there is no doubt

  that Marshall is a very raw product.

  Mechanics:

  (Please click the link to view)


  A couple thoughts:


  1. Marshall is slide-stepping in the clip on the right. That should be

  eliminated because he's learning from two separate sets of mechanics (the leg

  kick and the slide-step). That leads to consistency issues in how he performs

  from the stretch and the wind-up. In addition, the slide-step is meant to be

  quicker to the plate. You eliminate some of the lower body action to speeden

  up the delivery and as a result, you can lessen the quality of your stuff and

  become more "armsy" of a throw, something that should be avoided.


  2. Front side mechanics - a little awkward (see how the glove tilts to the

  side as he firms up?), but they get the job done. This is important in terms

  of control and finding a consistent release point.

  Arm Action


  Now, I'm sure the first thing many readers noticed is Marshall's arm action.

  He makes an "Inverted-W" or more simply, an M. That's not a guarantee for

  injury as some would have you believe, but I think it's safe to say you can

  raise his risk factor.

  One reason why the injury risk rises is that it can delay the external

  rotation, which occurs when the forearm appears "lay back" as the arm is

  rotating into release. The elbow goes above the shoulder, but drops back down

  just as the front shoulder begins to open. In an effort to keep up with the

  opening of his front shoulder, Marshall's rotation is faster, more forceful.

  This is good for velocity, but perhaps more stressful on the shoulder because

  again, more force is being applied to the shoulder.

  That's just a theory though. Until we get actual research and evidence of its

  affects, all we are dealing with is speculation.


  Keep in mind that such an arm action could explain why certain pitchers throw

  as hard as they do. It's also possible the arm action is more comfortable for

  the pitchers who use it. No one arm action is right for everybody.


  Ultimately, the Inverted-W is something that has been defined differently by

  multiple people, so there is no question that confusion abounds on the topic

  and the term is often misused when discussing mechanics. I hope to do a more

  in-depth article on the Inverted-W in the near future.


  Keeping Marshall Healthy


  Should the Yankees fix Marshall's arm action "problem"? I don't think

  so....unless it's becoming clear his shoulder can't handle the velocities

  that are associated with it. Just make sure he has good timing with regards

  to the other parts of his mechanics and be careful about pushing him too hard

  as he builds up arm strength.


  Marshall may very well may get injured as a pitcher, but it may not be

  because of his mechanics, which are only a small part of the equation. It may

  be because he was overworked as a high school pitcher by his coaches. Does

  146 pitches for a 17-year old sound like something that was done to preserve

  Marshall's future health?


  My feeling is that Marshall should really be treated with kids gloves. My

  reasoning includes the fact that Marshall is relatively new to pitching as he

  was only recently converted from shortstop. While his arm has less mileage on

  it--there should be questions about how well his arm is conditioned to handle

  heavy loads of pitching. He's going to need time to:


  1. Learn the different facets of pitching (selection, setting up hitters, etc)


  2. Build up innings in reasonable intervals and as I stated early, treat him

  with kids gloves--especially in his first couple years of professional ball.

  Stride


  Marshall drops his front leg in a straight line toward home plate. There are

  many ways to stride into foot plant, but I like what Marshall does because I

  think he makes it easier for himself to add momentum into foot plant and

  achieve a forceful rotation of the hips.

  The path his front leg takes should also help him enact a longer stride,

  which is something he should strongly consider doing. A longer stride could

  add a couple mph to his fastball as he gives his legs a bigger role in the

  generation of velocity. His fastball would also get on hitters a little more

  quickly because he would be releasing the ball a little closer to home plate.

  You can see an illustration of this in the graphics in the "Stuff"' section.


  Stuff

  Marshall has very good, very lively stuff. The fastball sits between 89-96

  with plenty of tail and sink. He said in this interview he threw two

  fastballs: a 2-seamer and 4-seamer, which would explain the variations in

  velocity. This may also mean Marshall has the ability to become a

  groundball/strikeout type pitcher, which would make him a sabermetric

  favorite.

  The slider, which he didn't throw in the video provided, is regarded as his

  out pitch and clocks in between 84 and 88 mph, while the change-up is

  presently a below average pitch. Marshall did throw what looked like a

  curveball with a nice sharp break. It was clocked at 76 mph. Below is

  Marshall's fastball (left) and curveball (right) in action:

  (Please click the link to view)

  In terms of control and command, he still needs to find consistency with each

  of his pitches, but judging from his overall mechanics and from what I have

  read and seen, I would say his control projects anywhere from average to

  above average.

  As noted earlier, Marshall's upside may not be top of the line, but he can

  get pretty close. However, the gap from what he is to what he can is quite

  large. '

  Should Marshall remain healthy, I see his upside as a mid-level No. 2 starter

  with his downside--not including the usual "blows his arm out" downside--to

  be a solid power-arm out of the pen.

--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 118.160.47.85
推 dvsmatix:所以可以期待囉 不過應該要養很久
※ 編輯: appshjkli       來自: 118.160.47.85        (12/01 21:04)
推 redsnipertd:這隻的arm action也是Prior流的~
推 jayin07:Prior當年分數超豪洨的，最差的分數還有60分
推 b2209187:等他上高階小聯盟再來談也不遲...