Shortstop

The Orioles need a shortstop.  Cesar Izturis is a free agent, and there are no viable internal options (sorry, Mr. Andino).  The Orioles could potentially resign Izturis, but his bat has deteriorated so incredibly far that even excellent defense leaves him below replacement level (-34 batting runs brought him to -0.4 fWAR in 2010).  The options on the free agent market are also extremely thin.  There is, however, one intriguing (potential) option: Hiroyuki Nakajima.  There is no guarantee that he will be posted this off season, and there are certainly questions over how well he would make the transition to MLB, but given the dearth of domestic options, this is one import the Orioles would do well to give a long, hard look.  Could signing Koji two years ago have also helped address the shortstop position?