The 2007-08 Celtics had more than 15 losses and improved their total number of wins by less than 43 .
Powered by the acquisitions of perennial All-Stars Kevin Garnett and Ray Allen in the offseason , the Celtics finished with a record of 69–13 and posted the best single-season turnaround in NBA history , improving by 45 wins from the previous season .
2007–08 Boston Celtics season