I'm in full agreement that we play in a Dome, we should build the offense to that environment, and that means passing.
The only way a defensive HC is the right move is if they've already lead a program with an exceptionally good offense.
We're not going to be a great defensive program. It's too hard to do in college football. Everybody but us scores points.
What we'll get instead is the illusion of good defense by playing at best a weak ball control offense that tries to play a field position game.
It'll be the more of the same boring, losing football.