THERE are plenty of people rooting for this latest Whitney Biennial, hoping it recalibrates the image of the art world as something other than youth-besotted and money-obsessed. It's a start, just barely. I imagine it will provoke much head scratching by uninitiated visitors. This typically huge exhibition is very much an insider's affair, a hermetic take on what has been making waves. It will seem old hat to aficionados and inscrutable to many others. Maybe it's impossible, or impossible for the Whitney, to do a show today that doesn't seem beholden to fashion and, for art world types, familiar. Francesco...