From what I understand he had some nagging injury problems last season. If those are sorted out, he should look a bit better. He is off to a pretty decent start in AAA, though his last two outings haven't been great. An encouraging sign is his K to BB ratio: 40 K's, 14 BB's in 50 IP. In his 9 starts last year he had as many BB's as K's, never a good sign. I'm not saying that he'll dominate, but I think that when he's called up he will be more effective than he was last season.
"This guy leads the league in most offensive categories, including nose hair..."