When you’re winning more than the program has won in a long time, you don’t fire the DC. Especially considering tuiaki wasn’t calling plays during the second half of last season. And the defense under tuiaki wasn’t near as bad as the dented offense.
We made a big and good change when we needed to, and had success recently even with tuiaki. No reason to dwell on possibly winning an extra game or two without tuiaki.