He just never has been a particularly good pitcher, with a career 1.42 WHIP. Last year, he had a 1.37 WHIP, but an ERA under 3.00, which was lower than it should have been, meaning that he was probably more lucky than good. This year, his WHIP is up to 1.58, which isn't really that far off his career totals, and his ERA is around where you'd suspect it to be with a WHIP like that. His K/9 and K/BB ratios are also right where they were last year, but he's just giving up too many hits. I don't think there's any reason to think he'll signifigantly improve. He's a marginal closer at best who will only help one category and will hurt your ratios.