Lichtman and Tango think that Buehrle's contract overpays him
Someone already mentioned the THT column which concludes Buehrle is overpaid.
On a more positive note, Chris Dial at BTF thinks the signing was a good one
I have to admit that I'm surprised that so many stats people have panned the deal. It makes me wonder if WAR for pitchers is really calibrated correctly. Perhaps it would be better to look at WAWSR (Wins Above White Sox Replacement) which clearly shows that replacement level players from the Sox system aren't nearly as good as replacement level players from other systems.
Anyway, for a team willing to carry a $100M payroll and one that wants to be good again rapidly, I have a hard time seeing it as bad.
I'd be interested in knowing what the people who post here think about the various analyses of the deal. And I'd also like to know why I didn't see a bunch of articles saying the Matsuzaka signing was a bad deal...