Earlier today, David Todd brought up an interesting subject on Twitter. He posted the numbers of Matt Diaz and Lyle Overbay last year, then showed their numbers this year. Since I have a little bit more room to work here than on Twitter, I'll expand those numbers.
Matt Diaz, 2011, Pittsburgh Pirates: .627 OPS in 216 at-bats
Matt Diaz, 2012, Atlanta Braves: .851 OPS in 41 at-bats
It's a small sample size (as David noted), but Diaz looked finished in 2011, and he's hitting again in 2012. I'll also add that most of his success this year has come against left handers (1.098 OPS in 27 at-bats vs .378 OPS against right handers in 14 at-bats). Diaz was brought in last year because of his success against left handers. He hit for a .692 OPS in 132 at-bats against left handers, with a .550 OPS against right handers.
Then there's Lyle Overbay...
Lyle Overbay, 2011, Pittsburgh Pirates: .649 OPS in 352 at-bats
Lyle Overbay, 2012, Arizona Diamondbacks: .914 OPS in 49 at-bats
Tim is the owner and editor in chief of Pirates Prospects. He started the site in January 2009, and turned it into his full time job during the 2011 season. Prior to starting Pirates Prospects, Tim worked with AccuScore.com, providing MLB, NHL, and NFL coverage to various national media outlets, including ESPN Insider, USA Today, Yahoo Sports, and the Wall Street Journal. He also writes the annual Prospect Guide, which is sold through the site. Tim lives in Bradenton, where he provides live coverage all year of Spring Training, mini camp, instructs, the Bradenton Marauders, and the GCL Pirates.