The former ROY and Cy Young runner-up is still only 28, but hasn't topped 65 IP in the majors since '07. The latter half of last decade was unkind to the onetime wunderkind. He's only pitched out of the 'pen a handful of times, but as a lefty, could he be another contingency plan for Rhodes? I don't see much room for him on the Opening Day roster even if Arthur doesn't re-sign, though D-Train may have reached a point in his career in which he would accept an assignment. Worth wondering whether moves like this and kicking the tires on Brandon Webb could presage the trading of a starting pitcher. Or the other way around. Or a new START treaty. I never learned my cause from my effect in elementary school.