Tyree Jackson has among the more putrid mechanics I've seen. His back leg has a tendency if whipping and leaving the ground during the follow through of the throwing motion, meaning he's more depending on torquing his upper body to generate throw power instead of having it come from his base. But I did find myself marveling at his best throws. I am hoping that because he's mostly self-taught, that a full-time regimen with quality coaching could fix his issues. I think he's less likely than likely to make good on his talents. But that's because his talent is honestly somewhat wild.