I'm less concerned with the 2nd half swoons than I am with his age. He's already 31 and very few middle infielders maintain their game into their mid-30's. Guys that do are generally corner players and pitchers. It's possible he won't decline for a while, but considering they'd almost be forced to sign him to an extension if they traded for him, a contract that would pay him into his mid-to-late 30's, he's just not that attractive of a target. Had they trade for him last year, and gotten two seasons out of him, great. But it's not like he's some superstar, he's got a career OPS+ barely over 100. And with a game that relies heavily on his legs, I'm not that optimistic about him maintaining the recent levels for much longer.