You seem to feel so passionately about this, and yet you evidently haven't given it serious thought.
That is the WRONG way to think about it.
I read somewhere that before the adoption of the rule, there were only 7 black coaches in NFL history. A better way to measure the effectiveness of the rule is total up how many black coaches in total have been hired since then. And I believe it is way more than 7. I think I saw the number 21 somewhere. And yes, I realize that not every black coach hired was directly aided by the rule.
Not only that, but you also have to take account of HC hires whose careers' ascent to the HC position were aided by the rule. So someone could have been interviewed for HC position, didn't get hired but was good enough to get on the organization's radar. Later, the organization could hire the same person for a DC or HC position, and an excellent performance in that role could lead to a HC position elsewhere.
You're giving the rule too much credit in my opinion. Cultural changes have happened too, and have done more than the Rooney Rule.
Like how many starting black QB's were there in the league when the Rooney rule passed and their more athletic play style wasn't embraced? Around 5? It's around 15 now. That thanks to a rule change or a reflection of a social/cultural change?
Look at these NBA numbers, and they haven't implemented anything like the Rooney Rule.
"The league averaged just five black head coaches per season from 1990-2000—with a low of two (in 1992) and a high of seven (1993)."
"From 2000-01 to 2012-13, the NBA started each season with an average of just over 11 Black coaches."
"In the 2022/23 NBA season, there were 15 African American head coaches in comparison to 14 white head coaches. Going back to 2010, this was the first time that the number of African American head coaches in the NBA exceeded the number of white head coaches."
Black coaching hires were going to go up regardless. The Rooney rule didn't do it.
And what's all this "on the radar" stuff? When Bienemy had those interviews and didn't get hired nobody was like "Good for him! He's on so many people's radar now and building so many relationships". And why the Pats catching shit If people think their interviews might be setting up future opportunities for Leftwich and Hamilton?
I think the rule regarding HC hires was put in with good intentions. But forcing interviews isn't working.