In the comments to my piece raising questions about the deal between Indiana University and "human-powered" search engine ChaCha, PR flack Liza Dittoe says she'd like to point out some "errors." By which we assume she means her client's copious mistakes. Oh, but "inadvertent mistakes," she says. How exactly does a CFO and general counsel "inadvertently" make the mistake of signing and certifying as true a form being submitted to the SEC? Isn't it his job to be attentive to these matters? And how difficult is it to know whether or not someone's still on your board?