Not a bad debut thus far - 5 IP, 1 H, 0 R, 0 BB, 3 K. Final line was 6 IP, 3 H, 0 R, 0 BB, 3K. I'm tempering my excitement since we're only one month into the season, but is this guy a top ten Cubs prospect at this point? Dare I say top 5? That's far too quick for me. I'd probably sneak him into my top 15 now (admittedly he wasn't in my top 30 to start the season). 29 IP with 28 K and 1 BB between A+ and AA is ridiculous. What type of pitches and velo does Whitnack have? Those are other worldly K/BB numbers.