Maybe, but then it would probably point to confidence problems. Because during the very early part of camp last year, he just quit (or was that two years ago? Hm, I think it was last year). Either it was too hard, or he didn't think he could do it. It's got to be one of them, right?
But it appears to me that he is working pretty darn hard now, and he had the guts to try again, so either way it looks like he has made some really good strides. And he does have a darned good arm. You almost hold out hope that in four years the kid could be starting somewhere.