I don't disagree but, for the sake of accuracy, I feel the need to point out that there's only 4 "qualified" 2nd basemen in the NL with worse stats than Biggio, and one of those is Burke. In reality, only the Marlins and the Rocks would swap their guy for Biggio at this point. The argument is, essentially, who's less bad.
If we take a step back from 1 month of data and just look at 2006 totals, you'll see quite a few teams are getting about that same production from their 2B.
Atl in 2006--272/342/400
Chi in 2006--274/326/411
Cin in 2006--272/327/415
Mil in 2006--266/338/388
I didn't check but I'd be surprised if Stl, Colorado or SD posted 2B numbers much different than above. Not sure those numbers transaltes to more production than Biggio's 250/300/457. Less OBP but more power. Seems like a wash to me.
Biggio still has one good offensive skill--he can hit for power for a 2B. It is likely this ability will decline over the course of the season, as he seems to peter out during the dog days. Until then, he's a viable 2B.