Rating Subprime Investment Grade Made `Joke' of Credit Experts

``I'd like to understand why now, when you could have made this move many, many months ago,'' said Steven Eisman, 45, who manages the $1.5 billion FrontPoint Financial Services hedge fund for Morgan Stanley in Greenwich, Connecticut. ``The paper just deteriorates every single month.'' Warrack and Managing Director Susan Barnes, 42, explained S&P's view of the time needed to accurately judge the performance of securities. Eisman cut them off. ``You need to have a better answer,'' he said. As the five-year real estate boom approached its peak in 2005,