Please, Billick had almost nothing to do with that 2000 Ravens defense. If you actually read a little about Billick, you would realize that he gets almost no credit for the performance of the defense. The Ravens were already great on defense before he came. He was hired because the Ravens offense was absolutely terrible, and was given a lot of power to choose his QB and offensive personnel. The Ravens offense never finished above 14th in his NINE YEARS that he was in Baltimore.
For a guy with an offensive background, that is an absolutely awful track record.
But you can go ahead and keep attributing that Super Bowl win to Billick, but then again, you can remain oblivious.
Baltimore's offense is already better than it was during Billick's entire 9 year run in Baltimore.