Hold your horses, Bubsy. While it looked like there were but a few Is to dot and Ts to cross before Comcast's takeover of NBC Universal was official, folks in high places are now shaking their heads at a recent decision by the carrier. As the story goes, Comcast and NBC Universal are still in talks with the government over the proposed takeover, and it seems that a few wires were crossed in recent days; Comcast decided to announce a new management slate for NBC Universal just a few days ago, despite the fact that the takeover hasn't actually been green-lit. According to an inside report over at The New York Times, one unnamed official in Was