What I like this year is they've moved off the velocity fetish, and drafted more "pitchability."
I think some things can't be taught, body control (the ability to repeat mechanics and command your pitches), seeing breaking balls, bat speed, etc. You can tweak pitching and swing mechanics, but if a player doesn't have body control, eye to hand coordination, the ability to pick up spin, quick twitch muscles and so on, velocity and power peter out in AA ball.