To his credit, Jackson did fight a knee injury for much of the first half of his second season. His play noticeably improved once he regained his health down the stretch in 2010. He is only 25 years old. Maybe the light has come on for him and there are much more good things to come. Kansas City had better hope so. But still, Jackson isn’t a dominator against the run by any stretch of the imagination and has recorded only one career sack in two seasons. Remember, though, that he was the third overall pick in the draft.