If you follow U of C professor Daniel Drezner's blog, you'll know he drafted a tag team of substitutes to fill in while he was away on holiday. Drezner offered a "farewell warning" that the pair were of a different ideological stripe than that to which readers were accustomed, and, in his absence, commenters kept things plenty lively. David Greenberg, one of Drezner's fill-ins, describes the experience in the New York Times and concludes he's just "not cut out for blogging."