Defense doesn't let you get to 21, Offense can't get to 21.
FWIW that
defense was opportunistic and created a lot of turnovers. They also gave up a lot of yards and points. They were ranked 20th in points allowed and 25th by yards allowed (26th passing, 21th rushing). We were 2nd in takeaways which is an extremely difficult stat to rank high in without a little bit of luck.
In no way was that a top 10 defense. It was mid at best. They were good for a high scoring offense though. We put them on the field a lot.
This current offense is an extension of the defense. Right now that has proven to be a .500 ball tactic.