McCain's and Davis's and Schmidt's decision to pick Palin was a huge political gamble. But that's the thing about gambles: you don't know beforehand how they're going to turn out. If Palin had proven during the course of the campaign that she was up to the job of being veep and maybe even president, it's a gamble McCain may well have won. But because she clearly demonstrated that she wasn't up to the job, the gamble backfired and the move wound up actually costing McCain votes. It's sort of pointless for pundits/journalists/whatever to hold McCain et al accountable for the Palin pick at this point, since the voters already did.
-- Jason Zengerle