New Jersey Nets biggest year-to-year improvement/decline
based on regular season win percentage:

                            Change in 
                              win %
Improvement: 2001 -> 2002     0.317   (0.317 -> 0.634)
Decline:     1998 -> 1999    -0.204   (0.524 -> 0.320)
Last Year:   2007 -> 2008    -0.085   (0.500 -> 0.415)