“The longstanding rivalry between Charles Saatchi, the British advertising magnate and art collector, and Sir Nicholas Serota, director of the Tate here, is heating up again. Mr. Saatchi says Sir Nicholas turned down his offer to give the Tate his entire collection, while Sir Nicholas says no such offer was made.” There has long been bad blood between these two heavyweights of the British art world: Saatchi believes the Tate is stuffy and uninterested in seriously promoting new Brit-art, while the leadership of Tate Modern views Saatchi as a cowboy more interested in generating controversy and winning turf wars than securing the future of art.