reading that daily Bruin article, he's a 2 pitch pitcher right now - Fastball and slider. Fastball he uses to get ahead, slider for swings and misses. Trying to develop a change up. Has a curve he'll use against lefties, but the slider is the plus pitch.
It'll be interesting to see if the Nats use him as a starter in the minors, or maybe an opener / multi-inning guy, so he can work on his secondary stuff, or whether they like the 2 pitches so much that they try to fast-track him in the pen.