Here you have all the Lakers regular seasons ordered from best to worst. At the top of the list is the 1971-72 season where the Lakers won an NBA-record 33 consecutive games.
To find the Lakers 2014-15 season you have to scroll down to the bottom of this list since it was the worst season in franchise history. The 2013-14 season is also there as the third worst. On a brighter note, the 2008-09 season is tied for 3rd best in Lakers history.
Best season: 1971-72, 69-13 (.841)
Worst Season: 2014-15, 21-61 (.256)