Brian Lawrence?

Dejan's notebook today reports that the Pirates are among the finalists for former Padre pitcher Brian Lawrence. Lawrence was a pretty decent starter when healthy for San Diego, but he's coming off of surgery to fix his labrum and rotator cuff. That's some serious stuff right there. I realize that if we sign him it will most likely be to challenge Chacon for the fifth rotation spot, but I don't understand why we'd go straight to Lawrence when a similar and healthier pitcher is still on the market in Tomo Ohka (Ohka and Lawrence are each other's top similarity matches on Baseball Reference). We haven't spent any more this off-season, who cares if the Mets are bidding on Ohka? Spend some money, get a player that you know will help the team instead of one that might. Ugh.