1. I wouldn't call Kerr an elite genius coach because of what he did with the GSW for the last 5 years. He had elite talent at his disposal.
2. Spo being able to have the success he has had, regardless of his level of talent, doesn't mean any/every talented coach will do the same. We hear that entire Heat organizationis a well oiled unit, so it isn't even just about Spo. Their pieces always seem to fit, that is what happens when you have a competent front office.
Every supposed good coach that is given non-star talent is afforded THAT luxury but they always get the blame for their squads no being successful.
3. Highly Disrespectful to consider what Mike Brown and Walton did as, "rolling out the balls" but that is the narrative pushed by the media, so I don't blame you for feeling that way.
But what does THAT say about Kerr? Nothing. It says the players were SUPER talented. Which goes back to my initial point of TALENT is far abpve the most important factor in producing a winning team.
Me personally, I don't have enough intel to disrespect any of those coaches to say who is or isn't bad. Everything I hear is second-hand info or judging them based on team success. That has always been ny stance.