Hal Varian on how the Web challenges managershttp://www.mckinseyquarterly.com/wrapper.aspx?ar=2286&story=true&url=http://www.mckinseyquarterly.com/Hal_Varian_on_how_the_Web_challenges_managers_2286%3fpagenum%3d1%23HalVarian&pgn=hava09_exhibit by dtap • 17 years ago 1 0 17 years agoMCmckinseyquarterly.com