The Celtics won the majority of their les back in the 50's and 60's when there was no salary cap. It was a very different league back then with far less compe ion between teams.
In the modern NBA era they have 6 les, 3 in the 80's, 2 in the 70's, and one in 2008.
1957, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1968, 1969,
1974, 1976, 1981, 1984, 1986, 2008
The Lakers have 9.
A mind-numbing 5 les in the 80's and 3 from 2000-2003. They have been IN the Finals a stunning 29 times. They have simply never fallen off the radar like the Celtics did from 1986-2007. That's a stunning 21 YEARS without returning back to the Finals. Absolutely pathetic for the supposed most "historic" franchise in the league to not even get close to the Finals for OVER TWO DECADES.
It would never happen to the Lakers. They have consistently stayed good throughout the years due to great ownership and quality GMs.