Knox spent three seasons at George Mason, and he steadily improved each year. His career collegiate ERA is 6.11, but last season, he posted a 3.29 mark. There's a lot of development needed here, as he's only thrown 53 innings over this span. He has control issues (39 walks) and doesn't miss a ton of bats (56 strikeouts), but this is another late-riser that the Cubs clearly wanted a chance to develop in-house.