His career suggests he's more than capable. Like BTR said, only way to find out is to see what happens. I don't think he's incapable of .800 OPS, I just don't see why everyone's boning up again. It was pathetic last year, and it still is this year. Don't count your chickens before they hatch. If you made the prediction "I think he finishes with .850 OPS", it's fine and dandy, but you're practically congratulating him on that, 60 games into the year, when you make these threads. This is basically an "eat crow, bitches" thing to do, a la last year. You ended up being wrong, he slumped for a couple months at the end.
Why don't you and SFF understand this very simple concept. You have to try to debate realism, and convince everyone they should eat their crow. I'll leave it at that.