Given that Cabrera was a semi-surprise early addition to the 40-man, is it possible that the reason his numbers don't look so good in the minors is because the Cubs are having him work on specific pitches? It can't be simply that they thought "this kid's got a live arm, let's put him on the 40-man," right? Unless I'm mis-remembering when he was put on the 40-man, I don't think it was to protect him from the Rule 5. That would also explain the aggressive promotion schedule, despite results that don't quite match. Just shooting from the hip.