The problem with this whole post is that it doesn't account for bias. The NFL was doing it that way forever, before the Rooney Rule and there was a problem. There are always guys like you who go on and on on how unfair the Rooney rule is, but never suggest any alternative methods to fix the problem. They just want the status quo, owners who hire people who they are "comfortable" with or remind them of themselves.
I don't know that the Rooney rule works. But there is definitely an issue when anyone who has just had a casual conversation with Sean McVay is head coaching material, but Eric Bienemy gets dinged for working with Andy Reid because Reid must be the person really running things. Or a hire like Joe Judge who had no head coaching or coordinator experience. That doesn't mean that he can't do the job, but a minority candidate would never get that same opportunity, there would be a long list of reasons he isn't qualified, or things he needs to do first before he is head coaching material.