Those are some good numbers put into the argument, but one flaw in that is you are using errors and we all know how reliable the error stat is in general. If a Double Play isn't turned because of a dropped ball by the 1B, that is not an error and a lot of plays are ruled as infield hits where they could have been outs. There is definitely a lot of substance to your argument though and I mostly agree with it. I did enjoy Prince's web gem against the Braves on Sunday where he leaped up and caught the ball and doubled up the guy at 2B, so he has shown he can make some plays. I think concentration and focus plays a lot into Prince's defense as well. If he puts the work in, his defense can be average, but he doesn't have the talent or body type to be able to play good defense with a lot less effort like some guys do like Derrek Lee and others. Prince makes 1B look hard, while guys like Lee and Helton make it look easy. Prince is going to be a DH for an AL team in the very near future anyways, but he has been serviceable defensively, at least in his short stint for the Brewers.