Comments on: Daily Prospect Profile: Zack Von Rosenberg Your best source for news on the Pittsburgh Pirates and their minor league system. Mon, 17 Nov 2014 18:00:00 +0000 hourly 1 By: Anonymous Wed, 27 Jul 2011 00:33:00 +0000 I have seen ZVR several times this year and he is lacking confidence on the mound. That is basically all there is to it. Good clean mechanics and plenty of room to add velo, but needs to have some success. Glad to see his last two outings have been better.