I agree with OP4. The one time I saw him practice in person, he was shaky. The coaches like him though, and as OP said, he has the tools. It's just a matter of if he can get it done. In the spring game he came away with really good stats but he was going against our second string, so that doesn't show much.
I know this is a smartass answer, but we'll know a lot more after the Memphis game. He was hyped big time out of high school. He and Tim Tebow were Urban Meyer's top targets at UF. We'll see how it translates into live action. He is big and he does have some decent mobility as well.