I don't care whether the next head coach is an offensive or defensive guy or whether he will be a de facto coordinator. Actually, absent an exceptional coach on one side of the ball like Sean Payton, my preference is that the head coach hire great coordinators and let them do their job.
I would not even interview Brian Flores. His three years in Miami were unexceptional. I find concerning the stories regarding his relationship with Tua Tagovailoa. But this is a coach who when dismissed sued the league for discrimination. I would not want anyone in my organization who, if he is one day released, might sue the organization.