Kirby Lee/US PresswireHong-Chih Kuo (29)The setup: Coming off his spectacular 2010 (1.20 ERA, .211 opposing on-base percentage, 73 strikeouts in 60 innings and a career-high 56 games) and three years removed from his most recent surgery, Kuo was expected to be an integral, if not the most integral, component to the Dodger bullpen.The closeup: It was a bruising season for Kuo.He lasted fewer than three weeks before he landed on the disabled list April 16 with a lower back strain, related to problems we would learn had been with him since the season began. That, at the time, seemed to explain why Kuo had walked four in 2 2/3 innings of a shaky start to 2011. Kuo returned to active duty May 1, only to be charged with four runs on a walk, a hit batter and two singles in one-third of an inning