A quality shortstop prospect in a weak Pittsburgh system, California native Chase D'Arnaud had a disappointing 2011, often looking overmatched by quality pitches, and re-raising the same questions about his plate discipline and batting eye that he's been ducking for a few seasons now. He's not a bust, but 2012 will be a crucible of sorts for the maturing D'Arnaud: he needs to show something, and soon.