Aside from leading the Carolina League in ERA and finishing fourth in strikeouts (despite missing the final month of the season because of the Olympics), Arrieta's .199 average against ranked fifth among full-season pitchers. He also was 15th in K/9 (9.56) and topped all Class A Advanced pitchers with his K/9 and average against while placing fourth in ERA.
Scouting report: Aggressive, goes right after hitters with a good fastball that touches 97 mph with good command. He continues to work on secondary pitches -- a curve and slider, the latter being the better pitch. His changeup has a chance to be a good offering; right now, he throws it mostly to left-handed hitters.
Upside potential: If his secondary pitches continue to improve, a front-of-the-rotation starter.
They said it: "The big key for Jake is he's going to Double-A. His fastball was his focus pitch in High-A and he leaned on it a great deal. He's going to have to make that next step at Double-A. He's a four-pitch guy. When the other three pitches become consistent and he can use them the way he needs to, the sky is the limit. That's what I'm looking forward to from him in 2009, the progression of secondary pitches. When he makes that step, he's going to force his way to the big leagues." -- Orioles scouting director Joe Jordan
He said it: "I knew it was going to be a grind, but you never know exactly how it will be until you actually experience it. The biggest transition for me was learning how to handle the workload over 140 games and just figuring out what you need to do to be ready for your next start on four days' rest as opposed to six, finding a schedule that works for you." -- Arrieta on his first full season