The point that McKewon is making is extremely obvious. So obvious in fact that it's dull. And so many people keep saying that as if it's some kind of revelation.
These same people like McKewon also seem to almost paint this picture that there were only two options: Keep Bo around indefinitely, or bring in Mike Riley. That's just ridiculous. There were multiple other options, such as firing Bo in 2014 and hiring someone other than Riley, or waiting another year while you went on a detailed hunt for someone considerably better than Riley.
It's time to stop this. Debating whether Bo should or shouldn't have been fired is dull. Bo wasn't going to win titles of any kind; that seems obvious. But it seems relatively clear that, given Mike's resume as a known variable, we should have gotten someone considerably better than him.