I don't think he's anywhere near as bad as he has been playing recently. He's gone LOB crazy in the past few games, thats for sure. But we stole this guy from Japan for a reason. He's not a bad player at all. He can be productive in the 5 or 7 spot on this team as of right now.
When we get back to full strength (if ever, ugh, damn injuries), it'll do well to have him hit near the bottom of the lineup. But the guy has a .288 career batting average, which you can't do unless you're a somewhat decent batter. He may be a big overrated, this is true, but he isn't completely blown out of proportion.