I'd take Kolek over Nola in a heart beat here. For one, quickness to the majors means nothing when he's blocked by Meyer, May, Darnell, Hughes, Gibson, Gilmartin, and Nolasco. Berrios could be in the way too in a year. Second, it's said the fastball has a nice drop to it... It's not a straight fastball. Go with high upside. If he flames out, he flames out, but the reward is way too tantalizing.