Yep. Never before and never after. It'll be like the New England Patriots. Before Brady, they were 119-158-1, with Brady, they were 219-66, after Brady they are 29-38. Crazy.
The Bulls were legit contenders for a few years there in the early 10s when Derrick Rose was there... but then the big 3 Heat formed and took over the eastern conference for 4 years, Rose was never quite the same after he came back from the injuries he sustained, and things fell apart again.
Interestingly enough, you could push the starting year of this quiz from 2000 all the way back to 1980, and you'd only have to add 3 more teams... the 76ers (1983), the Rockets (1994, 1995), and the Bulls (1991, 1992, 1993, 1996, 1997, 1998).