In the past four years he's been worth 3fWAR over 1326 PA's. Good for 1.35 fWAR/600. Not the worst player in baseball, but certainly not someone who is solid or a good person to have on a ball club; especially not when considering they paid him 10 million over that period of time. Can easily find that production for much cheaper.
Danny Mendick, who sucks by most accounts, has been slightly more valuable since his MLB debut per 600. .8fWAR over 328 PA's or 1.46/600.
Leury stinks.