Here's a current article from MiLB on Kaminska:
Facing old team, Kaminska is unhittable | MiLB.com News | The Official Site of Minor League Baseball
The bad news is that Kaminska will be 24 in October and is back at class A Bradenton, after pitching at the AA and AAA levels as a reliever earlier in the season (not too effectively, by the way).
Kyle Kaminska Stats, Bio, Photos, Highlights | MiLB.com Stats | The Official Site of Minor League Baseball
I hadn't heard of the guy before he was acquired by the Pirates..... can't tell whether or not he's a legitimate prospect. Since Gaby Sanchez likely is deemed to hold more value than Gorkys Hernandez, I'm guessing that Kaminska was deemed to be of LESS value than that 2013 draft pick..... to balance out the trade.
Does anyone know anything about Kaminska? Is he a prospect?