From what I saw from Shelby when he was in St. Louis, he'll go through stretches where he looks like a number 5 guy then he'll have a few starts where he looks like a number 1/2.
His release point is just incredibly inconsistent. If he's throwing it "down hill" his fast ball is heavy and he gets a lot of weak contract. If it's up, it's straight and it gets hammered. Was one of my favorite players when he was in St. Louis so hopefully he figures it out and does well.
This is 100% on ownership to not acquire a real center fielder. Owings has been awful out there. He takes stupid paths to the ball and does not know how to play the position. And he is nowhere near a productive enough hitter to justify his being out there consistently. That missed fly ball just cost the team 5 runs. Probably lost the game with that one play. Should have caught that ball. No need to slide. It was ridiculous.