At BP Unfiltered, Nate analyzes Braun's defense. It's not pretty. Pick your metric of choice: it's still not pretty.
Some points of reference:
When people start talking about your defense in the same sentence as what Manny Ramirez does when he's not hitting (I hesitate to use the d-word to describe that), it's bad news.
But, Nate makes the interesting point that the average right fielder last year was actually worse than the average third baseman. It's something I've noticed over the last few years: for whatever reason, right fielders aren't, as a group, the mashers you'd expect them to be, especially compared to their brethren in left.
That leads him to some ideas:
He offers some ideas to do just that, which are worth reading. Some are just plain not going to happen, like signing Mike Lowell, which I suspect would be prohibitively expensive. (But it would answer the question: who could we sign to play left field? Lowell to third, Braun to left.)
What I'd like to do is a much more thorough analysis of how much some of our starters--Cappy in particular--were hurt by Braun's arrival. It's a research project that will probably have to wait a while, but I do have the data--hit location for every batted ball in 2007--to see just who was hurt the most by Braun's subpar defense. If his fielding was really almost as bad as his hitting was good, it's a concern the Brewers will have to take very, very seriously.