The Orioles decided to send down Chad Moeller, going for defense over veteran leadership:

I think we’ll end up looking back on the decision as a mistake, but Dave Trembley and Andy MacPhail obviously think that Wieters is mature enough to take care of himself and Kevin Millwood can provide leadership for the young pitchers. I think what Moeller brings to the table is worth more over the long run than the runner or two that Tatum will throw out this year playing once a week. And, considering how Trembley plans his lineups so far in advance, he should be able to steer Moeller around the top running teams in the league.

Tatum is younger and cheaper, however. If the Orioles really think Moeller could add something through leadership, they should ask him to coach.