Zach McAllister is having a great season for the Yankees. He is currently #13 on Baseball America's prospect hot sheet.
http://www.baseballamerica.com/today/prospects/hotsheet/264617.html
13. Zach McAllister, rhp, short-season Staten Island (Yankees)
McAllister may not be the most noteworthy pitching prospect on his own Staten Island team--that honor would go to righthander Dellin Betances--but McAllister has been one of the best pitchers in the New York-Penn League. Still 19, McAllister has overmatched opposing hitters en route to posting a 2.91 ERA, 47 strikeouts and 15 walks in 43 1/3 innings.
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