Six Villians of Gov 2.0. I laughed and I cried, especially since I know people in each category, I am sorry to say.
No great list goes without a tweak, and I want to add another villain to Steve's on target list. I'll wager that you have met him or her, too. It's The Man.
The Man is the one in charge, and with his extreme power he can immediately kill any innovative project--or green light it. The Man is driven by a desire to be young and modern. He is enamored with the cool, the perceived hip, the newfangled innerwebs things (in addition to other mid-life crisis baubles) that shows he still has "It."
The Man is especially susceptible to teaming with the Money Monger (this is the part where you really need to see Steve's list), who's promises of the easy, wild successes that "all the Fortune 100" are implementing have the appeal of the Fountain of Youth.
The danger is in the implementation of a high-cost technology death march void of strategy or measurable goals. These time and money wasters distract our heroes from the real work required for effective transparency and collaboration. And, to add to the injury, the inevitable project failures will poison future efforts--fueling the efforts of the other villains, Debbie Downer and Dr. Closed Mind.
The strength of The Man is his past successes which earned him his current senior position. He is in charge. He makes things happen. He wins.
His Weaknesses? His ego. Just as the Money Monger appeals to making The Man seem hip, you can use his ego against him. The challenge is to do so without backing The Man into a corner or implying, even by a hint, that he is wrong. You might be able to throw a flag by enlisting the popular and do-gooding Captain Conservative. The danger here is slowing down your future efforts. This is a price that must be paid. Be sure to come armed with data and a strong strategy to do battle.
(This was originally a comment on Steve's post, but my current technology doesn't support flash, which his comment engine requires, and I wanted to play, too.)