2007-08: 66-16 (42 more wins)
After losing out in the draft lottery for a chance to select Greg Oden or Kevin Durant (despite having had the second-most Ping Pong balls), Boston fans were cursing their rotten luck again. But in separate blockbuster trades, Danny Ainge acquired Ray Allen (Sonics) and Kevin Garnett (Timberwolves) to pair with holdover star Paul Pierce. The Celtics went on to obliterate the NBA record for the biggest turnaround single-season turnaround -- and win the franchise's 17th championship.
Photo: Walter Iooss Jr./SI