One thing that worries me is a D. Price's arm movement. Knock on wood, light up the candles, sacrifice a dove, pray it never happens.
On a fastball, his mechanics are proper. He goes from 11:00 to 5:00 with his arm. All fine and nice. But then he finishes by snapping back his arm in a sort of whiplash motion and finishes up at around 9:00-9:30. That move puts an undesired strain on his elbow. He's not noticing now, he's not feeling it, he's done it probably since childhood. But at some point, that elbow will "break".
When it happens, then it's all chance. As in bonne chance.
Here's a problem. He's probably doing it unconsciously by now. It's ingrained. In his muscle memory. And if you try to change something like that now, it will mess up his delivery. Catch-22.