because he made a couple of errors? Yes, Jim Hendry said (on a Score interview a few days ago) that they didn't consider bringing him up until he improved his defense. he's been nothing special on defense, but he hasn't been that bad. besides, the cubs haven't had a problem with defense this season, although that will almost assuredly get blamed if they fall short of the playoffs. I don't think he'll be blamed but he has 3 errors in 3 weeks.