Right, Hamilton is a much higher risk for injury than skill deterioration. But Swisher's risk is split between the two factors. At a certain age, playing a lot in the past is an indicator for injury risk. Swisher is past that threshold. He's also had periods of utter futility throughout the last couple seasons.

I'd expect a Swisher signing to work out a lot like Ibanez. Year 1 might be nice and then it'll get ugly.