Downs on the curveball. Craig, Marshall has a high ceiling because he's a very projectable lefty with life on his fastball, and a better breaking ball, changeup and command than Sisco. But Sisco has a better chance of reaching his ceiling than Marshall does, if that makes any sense. Marshall could, and I emphasize "could" be a guy who pitches at 92-94 regularly, which is where Sisco is now. And while Sisco is younger, he's only six months younger. I'm not saying that Marshall is as good as Sisco or will be as good as Sisco, but he could be as good. Hence, his ceiling is similar.