Why? Bill Parcells had a sub 500 record when BB became his DC, within one season they were playing in a Super Bowl on two different teams. But you think that's what... coincidence?
BB made mistakes along the way, like the rest of us humans. You "BB sucks" types are absurd, the premier defensive mind of the 21st century is some witless boob who only won because he got lucky drafting that QB in the 6th round. But the 6th round QB wasn't lucky to have the best defense, special teams, offensive lines around him... that just happened by accident.
This thread is dumb, like most of these anti-BB takes. Stop bumping this witless thread, we're all getting dumber reading it.