Of all the advanced metrics championed by John Hollinger, the one I find most useful is EWA -- Estimated Wins Added -- which is essentially PER adjusted for playing time. The EWA gives the estimated number of wins a player adds to (or subtracts from) above (or below) what a "replacement player" would produce. As of today, the bottom 10 players in EWA are: Maurice Evans, Hawks (-1.2) Keith Bogans, Bulls (-1.2) Chris Duhon, Magic (-1.3) Derek Fisher, Lakers (-1.4) Rasual Butler, Clippers (-1.5) Ronnie Price, Jazz (-1.5) Travis Outlaw, Nets (-1.6) Steve Blake, Lakers (-1.7) Joel Anthony, Heat (-1.9) Stephen Graham, Nets (-2.3)