Greg Fiume/Getty ImagesTony Gwynn Jr. (34)The setup: Gwynn's defense and speed have never been in question, but his bat always has been, especially after a .591 OPS with San Diego in 2010 at age 27. The Dodgers risked only $675,000 on the possibility that he could help the team nonetheless. Reasons for optimism included his recovery from a broken hand and his dad's recovery from cancer.The closeup: It was a season of ups and downs for Gwynn, who could have two extra-inning hits in one game, then go for a month without a hit to the outfield. He entered June with a .230 on-base percentage, .277 slugging percentage and the threat of an early release, but he went .377/.389 with 10 steals over the next two months, including a 7-for-11 batting spree over two days in late June, followed b